1) Bitcoin: I plan to have between 60-70% of the portfolio I plan to buy when it reaches 6000 if not when it exceeds 8100
This is already a good choice for you. I wouldn't care what coins you have suggested on that portfolio of yours but I'll give you advice that you shouldn't focus on diversification that much. I see that most of the altcoins you are interested in, I'll refrain to invest so think of it.
But having 70% of bitcoin as maximum or more with your portfolio is already a decent portfolio for me.