This is my opinion, please wait until the price of bitcoin and Litecoin drops by 3% or more should buy. In the next few months it will happen so please be patient. I recommend investing in bitcoin more than Litecoin. As far as I'm aware, Litecoin does not have as big a impact as bitcoin at the moment, so the price will not rise as high as bitcoin. I recommend investing 70% in bitcoin and 30% investing in litecoin, you will be profitable.
this is a good idea to wait until litecoin drops by 3% because we can buy as much as litecoin we want with our money. but don't forget to divide your money to two parts for bitcoin and litecoin and I agree with you for the percentage for each coin and I think litecoin will give us a big profit for a long term investment. and for bitcoin itself, I think we cannot buy right now because bitcoin price it seems wants to rally to higher price and we need to wait for a while after bitcoin price is stable like last weeks.