I would've helped with 3D Modeling, along with some C++ programming (although, I just saw that you're not using C++...) but I don't like Game Engines, especially Realm Crafter. I think they're too much of a bad habit sorry =/
Well, if you ever decide you need help on the scripting engine too (unless RC provides a default scripting language) then give me a PM. I'll be able to help you a bit on that (If I'm not too busy).
I'll be able t offer some advice on some aspects (Things you'll most likely value, especially with the scripting engine.)
But, I won't consider myself part of the team, just someone to talk about it with.