Doesn't sound real legal what you appear to want to do - unless its just to frame the title for wall art. Why not buy old VW chassis with title and move the IM body to that chassis --- or as much as is needed to be legal. (I'd check with DMV/police/insurance company to see how legal that would be first!) You'd do some hard jail time in US if caught registering a vehicle where the VIN's didn't match up -- or it was obvious the VIN had been altered. I'm not a lawyer -- so my advice is free and probably worth that.
There are auto titling companies that may be able to help you get a valid/legal title for a fee.
For example (only deal up to '74 year):
http://www.broadwaytitle.com/