You could sell on ebay and donate the money (less some of your direct expenses?) to some charity I suppose.
Edit: I obviously don't have any say since I didn't do anything to contribute, just throwin out an idea.
Man that looks cool Harold ! Nice friggin job ! I want it ! forget starving kids and abused animals me me me ! Some sort of auction ebay or otherwise would be cool saying its for charity and donated by many and built up by Harold
I suppose we do need to elect a charity really, preferably something good like cancer research or a charity- funded hospital, something like that.
When the truck sells someone could take the check along and get their photo taken for the local press ( make a big thing of it, mention the r/c hobby & RC-Monster etc ).
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Do we have a shell for the truck, anyone want to do a nice custom paintjob with the PiF theme & list of contributors / sponsors down one side or something?
A roller sans esc and motor makes sense really- let the buyer choose their own running gear ( though maybe add a note to the auction with some recommendations so that they aren't totally clueless if they are a newb or noob ).