To quote The Definitive Guide to ROM Hacking for Complete Beginners:
...unless you plan to do a significant portion of the work... then most ROM hackers will avoid your attempt to start a group because it looks like you're wanting to take credit for their hard work.
Sooner or later, if I ever want to see this project done, I need to learn 6502, which is easier said than done. Right now this appears to be merely a neophytic project.
Hmm, I don't think that's the case, with all projects
Quite honestly, I think you need to find someone who is just as passionate about the project as you are. If someone is really dedicated to such a task, credit is subjective in nature. After all, what's more important: e-peen+1 or making others happy by producing real results? If it's the latter, then there's absolutely nothing wrong with stepping up and leading project like this... and that usually entails learning things that you hadn't previously known (6502 assembly, in this case).
That said, I sincerely wish you the best, and definitely look forward to any progress made.