Whats the chance the culprit has a Suzuka? Probably not much. He's either going to sell it or install it on his own car if he has an S.
Either way, he's probably going to have it painted.
Call a few of the better known Auto Paint shops in your area and inform them to notify you if a top comes in for painting.
I know this is a longshot but every now and then a longshot comes in.