I just had a thought, why not use one of the dump models like the SOL AWACS or the SMB Magni that we didn't use solely becase I couldn't come up with a good texture for them? it would be fair and no posability of people cheating, and upon the first sucsesfull texture job we'd already have material from the person. UV maps have already been made for both of these (though there not the greatest) so who ever takes this on wouldn't need to know how to do that (though it would be helpful) and people would get access to some internal material, though only people who apply.
how's that sound Icey?