This thread is over a week old now, but I just stumbled upon it today and thought maybe a few of you guys hadn't seen it yet. Basically Blaholtzen (better known to some as badgerpig) is organizing the full creation of a new civilian character in TF2: modelling, texturing, animating, scripting and voicing, custom game-mode creation, item creation, and - where we might come in - mapping. Blaholtzen has stated that the mapping will be managed by the game-mode creator. I'm pretty sure this project isn't paid, but it's going to be big and a lot of fun to participate in. They also made a steam group to follow the action in if that suits you more.