Cool idea?? YES hard to orginize?? Not really if well though out!
I have a plan, might not be a good plan but its a plan none the less.
Shipping: shiping guitar peices doesnt cost much, and I myself, even though I would not volunteer for any of the work (not enough skills), I would donate $ for shipping costs.
Quality of work: This is an issue, my suggestion, do it up like the GOTM contests. Every one that is interested in participating, lays claim to what work they want to do. And everyone gets to vote on who does what, based on skills, and pictures of their past and present work.
Materials: Quality materials should be used, but considering the "nature of this beast" instead of a mohagony body, go with alder, as an example.
Type of axe: custom guitars that look like something else doesnt make that much money or get noticed. So something original has to be cooked up. Theres enough originaltiy and dementia in this forum, that this should not be a problem. And here's a spot where everyone, can participate, even the amatures. Draw up a rough desighn, and everyone votes. Or make hybrid suggestions, like a cross between an "S model Ibanez and a Les Paul"
Flow: once its all said and done, everyone knows who's doing what, and where and why. Break it down like this. Dude thats makes body, ships it to dude that finishes body, he then ships it to dude that hooks up the electronic, and then ships it to Brian for assembly. Dude that makes neck, ships it to dude that does inlay and frets, then ships it to Brian for assembly. This way your looking at maybe 60 to 80 in shipping.
Participation: Obviosly not eveyone can participate in the actuall crafting, and hopefully everyone would want the best people for the job. But by voting for everything involved, everyone does get to participate. And I mean voting right down to every little detail.
$$$$: the largest of problems, maybe it would be possible to (using as a referance) contact someone that supplies inlay, tell them whats going on, and tell them we'll put their name in big bold letters on the ebay listing, that would be free advertising to millions of people! Plus if the proceedes are going to one of Brians charities, that might snag a discount as well!
Alternate materials: As a suggestion, I plan on doing a "tribal" inlay on a guitar body someday. Instead of using shell (very expensive), I'm going to use Duracover (very cheap), the stuff used to cover drum shells which is very pleasing to the eye!
I think this would be a killer thing to do!! it would put some light on this webite, and on this forum. Which in the end, is the main purpose for doing this in the first palce. I might have left a couple details out, but these ideas could create more ideas, and maybee get this madness off the ground!
Sorry for the long post