Lee, that info mentioning 52 cars routed to a German shop came from a Euro magazine article sent to me by Roland Jaeckel many years ago. I used it in a POCA newsletter article at the time. The deal was to finish off all the remaining partially- completed Mangustas in Modena and Allessandro would then gift the shop with the German DeTomaso franchise. The shop (owned by Armin Fischer in Stuttgart) took the cars in batches of 5-10 at a time and completed, then sold them. A reproduced sales ad was included. DeTomaso SpA was very, very busy starting up Pantera production for Europe & fighting with Ford-Europe and ZF at the time.
The article mentioned the shop used brand new Mercedes e-brake handles, prompting threats from M-B Spare Parts officials when they found out. More notes mention the last batch of 6 cars- #1292 to #1302- were all built as right-hand-steer cars for England, Australia, N. Zealand and Japan. No info on others but there surely were a few right-handers done earlier in Italy.