You are already expecting to take a loss on it, I would (personally) just leave it as is and let the buyer figure it out. If the watch is hard to source now, it might be worth it to someone who wants to mod it. Like everyone else has said, the movement is the most valuable part. Did it come with the roulette date wheel?
I'm doing a built right now using the watch I bought a long time ago. If you do a search, you can find Donerix's build and a comparison of the case to a gen 6542... the shape of the PT case is very good, minus the lug holes and the rehaut. The rehaut can be sanded/machined down to look good and a larger, better quality dial can be fitted (I got one from Ingod). The lug holes there isn't much you can do, but I am going to place mine on a strap so I don't mind it (and prefer the markings between the lugs). The case won't work if you want to fit a bracelet, and the bracelet that came with the watch is crap. As for the bezel, mine came with teeth that are barely there and looks cheap - I picked up a gen style bezel on eBay and got an insert from JoeyB that should be arriving today.