I don't want to deal with an exchange, I don't want to influence the prices, and I want the best deal I can get. Acquiring the BSD from the exchange, as opposed to acquiring the BSD from a secondary source, shouldn't affect the network differently. It would probably temporarily influence the prices, due to the centralized nature of the exchanges, because Bittrex is the only exchange with any significant volume, but the inorganic market movement shouldn't affect the value. In contrast, adding a node to the network would positively impact the security of the system, decrease inflationary distribution, and increase the value of the currency in a more significant manner than would a temporary price fluctuation caused by a single green candle on an exchange.
But, having said all that ---> I just want to pay as little as possible ---> 8G's is a lot to fork out for me to not shop around for a deal first ---> right?
The best deal you can get is buying from Bittrex. It's also the simplest and safest if you do it sane and does not cost you your anonymity if this is your concern if you do only trade with crypto unlike to other exchanges. The other "reasoning" of you why you do not want to do that is just wired.
The only reason I can follow and you say twice is that you want to pay the lowest price you can get it for. That's valid.
I however doubt anyone will be willing to sell you lower so that you can have your lowest price possible but well good luck.
9G2.35BTC may be a lot for you but it is not too much for the bitsend bittrex market. If you do not want to spike the price do buy over time or portioned with price steps.
