Etherdelta is only for erc20 compatible tokens, highly unlikely they will be listed there.
Litecoin is a good buy, but why ripple? First of all, it’s not a decentralized platform, and 62% of the coins are in escrow account, imagine the flood when they will be released.
Do your research before investing, just because something is cheap doesn’t mean it’s investable. Stellar Lumens has the same tech as ripple, and same founder. In percent wise, that has more gains to be made.
Another good alternative for litecoin is Vertcoin. I bought it at 1.2, nit trading at around 6. Touched 8-9. i’m holding for 50x gain here.