Bosswrench, I remember visiting Lloyd's shop and saw axle stubs that were shaped for the 930 CV joint instead of the more common 4-bolt axle stubs that we all have. He said the right way to do the conversion is to change that axle stubs. I don't know if this is a part that is available or something he makes that is special. Either way I wasn't about to disassemble my ZF to do the conversion. One of the things that led me to making my own adapters is, the Bora I own has CV axles and Maserati used adapters to convert the 4 bolt axle stubs to round CV bolt pattern. I figured if it worked well for the Bora why couldn't it work for the Pantera.
As far a sourcing parts in the future - I don't care that the vendors stock them or not. There are plenty of shops that sell sand car parts and they sell the 930 CV's, Boots, and Axle shafts. There is no magic here.