Lots of great replies and comments. Ill try to answer in general as generally as I can.

Yeah, I think its very possible, and as well as being a personal challenge, its also something that can be easily shared without reservation as I think its practically impossible to lose money if youre willing and able to hold for as long as you have to if needed. From that group of 7 you might have one or two disappointments, but things have got to really go wrong for you to lose money. Its the biggest no brainer Ive ever seen in my life. Easy for me to say having been around since 2014. Easy for anyone whose been around since the early days to say the same. That having been said, its not so obvious to the newcomer, whos starting at a much higher buy price and has much less knowledge. Those of us whove been around know that crypto is here to stay and that the winners are going to be worth a lot more than they are now. The key rests with your crypto picking capabilities, and why not share your conclusions with others? If youre so sure about them for yourself, why not openly share them? Even at the risk of sounding like a shill! Its in all of our interests to hang on to our winnings until we get fair value, isnt it? One of the best things we can do is share our knowledge about that and work together to that end. Theres a reason why early adopters are handsomely rewarded: they invested their time, knowledge and money early on. The idea is to sell at fair value . . . after, of course, identifying the winners that will make it there. Yes, I think its very possible, and I hope there are as many of us peons as possible who do it!
Some of the more technical aspects: I think the potential is there in this portfolio for a 100x gain. No doubt in my mind that the reasonable prospect is there, and dead coins, third tier coins, not even 2nd tier coins are necessary in order to find these prospects. 100x gains with 1st tier crypto. Thats the amazing part about this! See this other thread for more thoughts of mine on this subject:
https://bt.irlbtc.com/view/1925617.0 With regards to other possibilities: thats why I invite everyone to participate, so you can put your suggestions out there too. I would only suggest that you try to stay with the basic criteria being used: high potential value crypto already performing as projected that is extremely undervalued. Technically LTC isnt in that category, but the portfolio needs a conservative, yet also relatively undervalued, balance to act as the bank and with BTC approaching fair value (that I estimate to be $5,000ish), LTC was chosen for that role (with a 20x conservative appreciation potential, next to BTC, its another no brainer it does everything BTC does, and much more!). And, of course, since I, or any of us, can always be wrong, I also recommend healthy debate.
No time frame is set. Everything risked is risk capital capable of being completely lost.