Also, be glad you just need mappers. People here are more than happy to help as mappers or testers, but otherwise, you're pretty much screwed (that's why I'm having to give up on my current project). My advice is to try to stick with resources you can easily get off the web, unless you can make the resources yourself, that is.
EDIT: I'm not going to have much to do until ChaosSparten finishes the tilesets and animation sheets for my new project, so I can map for you until then. Just PM me all of the tilesets and autotiles you are using.