This isn't so much as a 'Looking For', but a request. If one does not exist, I would gladly help make one, but unfortunately I have little to no money and I cannot actually host it, but I can help build things, and try to help with plug-ins. Basically a Co-Owner, I guess.
Using Mo' Creatures and Millenaire for a Roleplay server sounds like a rather brilliant idea, especially with more opportunities for items and roleplay. If someone was a guard and they needed to ride a horse, they could do so.
Different races, More Animals, it's a brilliant idea.
Millenaire could be used to populate towns, and would save building time.