Do you have photos of the frame and fork before the shop f*cked them up? That would help prove to the manager what damage has been done. Is it an independent shop or one of a chain? The manager should offer to (somehow) repair any damage, I can't see what they could do apart from replacing the frame and forks, quite difficult on such a rare bike. I don't know how it works in the States but in the UK you would have recourse to the local chamber of commerce and then the small claims court.