I can do some mapping. But I'm mostly interested in conceptual/balance work for the mod, such as what items do how much, which classes get what items.
If you can send me the maps that you already do have, I'd like to take a look and whittle down the list to a fewer, higher quality maps that I'll revise myself.
I can also code. Here's a game I've rewritten and modded up on BYOND.
http://www.byond.com/games/Rojiru/Garoleth
Years ago I did some voicework for PoP3.0, and some concept mapwork for PoP4.0, but that never went anywhere. I love this mod, and I'd like to do my part to make it succeed.