it can be had but you've got to be patient, now and then such a movement pops up on eBay, there's a member overhere selling these as well. I guess he asks $900 but bit too expensive imo.
These can be had at $300 if you search well otherwise $400 - $600. But if you're going that way you need to use a gen dial, you need gen hands or mod the rep hands to fit the gen movt. and then you have the casework, ...
Your looking at a $2500 - $3000 project. That's why you don't see many AP frankens...