I couldn't figure what about this car was bothering me...until I remembered I had a 67 HO 4 speed that I sold to Derek through this site.
The block code for a manual trans HO is WK. Seller lists block as WZ.
Probably an error or oversight. Not knocking the car or the find..or the owner for selling it. You must be a really good body man with a lot of money and patience to undertake. Heck, I would buy it and put a bungee cord on the drivers door to the seat bracket and drive it around as is.
Maybe put a bumper sticker on what bumper is there that reads "official stunt vehicle" or this one..