i saw your post in the How much forum- looks like a cool bike! too bad it does not fit.
I'd be fairly surprised if you could find the original parts for that bike easily: so if you want to make that some sort of Mission.. that could take years- then it could be pretty fun. or terribly frustrating. Kind of depends upon your personality. I'd be tempted to try it just because - as long as you don't need the money and have the space to store it..
if you are gonna have to stick it outside under a tarp.. then yes, sell it so someone else can enjoy.