Has anyone tried the -wallet=filename.dat argument to see if you can use one data folder with the blockchain. That way you can still use -conf=filename.conf for each masternode and name your masternode wallets. Then it's just a matter of a shortcut to represent each masternode.
I'm not sure there is a -wallet=<filename>.dat option...
Options:
-? This help message
-conf=<file> Specify configuration file (default: darkcoin.conf)
-pid=<file> Specify pid file (default: darkcoind.pid)
-gen Generate coins (default: 0)
-datadir=<dir> Specify data directory
-dbcache=<n> Set database cache size in megabytes (default: 25)
-timeout=<n> Specify connection timeout in milliseconds (default: 5000)
-proxy=<ip:port> Exclusively connect through socks proxy
-proxytoo=<ip:port> Also connect through socks proxy
-socks=<n> Select the version of socks proxy to use (4-5, default: 5)
-tor=<ip:port> Use proxy to reach tor hidden services (default: same as -proxy)
-dns Allow DNS lookups for -addnode, -seednode and -connect
-port=<port> Listen for connections on <port> (default: 9333 or testnet: 19333)
-maxconnections=<n> Maintain at most <n> connections to peers (default: 125)
-addnode=<ip> Add a node to connect to and attempt to keep the connection open
-connect=<ip> Connect only to the specified node(s)
-seednode=<ip> Connect to a node to retrieve peer addresses, and disconnect
-externalip=<ip> Specify your own public address
-onlynet=<net> Only connect to nodes in network <net> (IPv4, IPv6 or Tor)
-discover Discover own IP address (default: 1 when listening and no -externalip)
-checkpointenforce Only accept block chain matching checkpoints issued by the Auto-Checkpoint systems Master Node (default: 1)
-checkpoints Only accept block chain matching built-in checkpoints (default: 1)
-listen Accept connections from outside (default: 1 if no -proxy or -connect)
-bind=<addr> Bind to given address and always listen on it. Use [host]:port notation for IPv6
-dnsseed Find peers using DNS lookup (default: 1 unless -connect)
-banscore=<n> Threshold for disconnecting misbehaving peers (default: 100)
-bantime=<n> Number of seconds to keep misbehaving peers from reconnecting (default: 86400)
-maxreceivebuffer=<n> Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)
-maxsendbuffer=<n> Maximum per-connection send buffer, <n>*1000 bytes (default: 1000)
-bloomfilters Allow peers to set bloom filters (default: 1)
-upnp Use UPnP to map the listening port (default: 1 when listening)
-paytxfee=<amt> Fee per KB to add to transactions you send
-mininput=<amt> When creating transactions, ignore inputs with value less than this (default: 0.0001)
-server Accept command line and JSON-RPC commands
-testnet Use the test network
-debug Output extra debugging information. Implies all other -debug* options
-debugnet Output extra network debugging information
-logtimestamps Prepend debug output with timestamp (default: 1)
-shrinkdebugfile Shrink debug.log file on client startup (default: 1 when no -debug)
-printtoconsole Send trace/debug info to console instead of debug.log file
-printtodebugger Send trace/debug info to debugger
-rpcuser=<user> Username for JSON-RPC connections
-rpcpassword=<pw> Password for JSON-RPC connections
-rpcport=<port> Listen for JSON-RPC connections on <port> (default: 9332 or testnet: 19332)
-rpcallowip=<ip> Allow JSON-RPC connections from specified IP address
-rpcthreads=<n> Set the number of threads to service RPC calls (default: 4)
-blocknotify=<cmd> Execute command when the best block changes (%s in cmd is replaced by block hash)
-walletnotify=<cmd> Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)
-zapwallettxes=<mode> Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup
(default: 1, 1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)
-alertnotify=<cmd> Execute command when a relevant alert is received (%s in cmd is replaced by message)
-upgradewallet Upgrade wallet to latest format
-keypool=<n> Set key pool size to <n> (default: 100)
-rescan Rescan the block chain for missing wallet transactions
-salvagewallet Attempt to recover private keys from a corrupt wallet.dat
-checkblocks=<n> How many blocks to check at startup (default: 288, 0 = all)
-checklevel=<n> How thorough the block verification is (0-4, default: 3)
-txindex Maintain a full transaction index (default: 0)
-loadblock=<file> Imports blocks from external blk000??.dat file
-reindex Rebuild block chain index from current blk000??.dat files
-par=<n> Set the number of script verification threads (up to 16, 0 = auto, <0 = leave that many cores free, default: 0)
Masternode options:
-masternode=<n> Enable the client to act as a masternode (0-1, default: 0)
-masternodeprivkey=<n> Set the masternode private key
-masternodeaddr=<n> Set external address:port to get to this masternode (example: address:port)
Darksend options:
-disabledarksend=<n> Disable use of automated darksend for funds stored in this wallet (0-1, default: 1)
-enabledaemondarksend=<n> Darksend is not usually enabled in daemon mode (0-1, default: 1)
-darksendrounds=<n> Use N separate masternodes to anonymize funds (2-8, default: 2)
-anonymizedarkcoinamount=<n> Keep N darkcoin anonymized (default: 0)
Block creation options:
-blockminsize=<n> Set minimum block size in bytes (default: 0)
-blockmaxsize=<n> Set maximum block size in bytes (default: 250000)
-blockprioritysize=<n> Set maximum size of high-priority/low-fee transactions in bytes (default: 27000)
SSL options: (see the DarkCoin Wiki for SSL setup instructions)
-rpcssl Use OpenSSL (https) for JSON-RPC connections
-rpcsslcertificatechainfile=<file.cert> Server certificate file (default: server.cert)
-rpcsslprivatekeyfile=<file.pem> Server private key (default: server.pem)
-rpcsslciphers=<ciphers> Acceptable ciphers (default: TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH)
UI options:
-lang=<lang> Set language, for example "de_DE" (default: system locale)
-min Start minimized
-splash Show splash screen on startup (default: 1)
