Bill,
Sarco has the complete rig with repro Navy stock and holster/strap/mag pouch.
This type has the flap and post - similar to a police type holster.
The Belt wear holster has a buckle closure and belt loops on the back and no provision for attaching the stock of course.
I've also seen both types on ebay, but some of the colors of the leather are ugly!
Some of the repro holsters are a little small, and may require wetting and "boneing" to fit a pistol.
Just be sure to put the pistol in a suitable and sturdy plastic bag when inserting into the wet holster if you have to "stretch" it a bit.
I bought my repro holster and stock off ebay, but not together; same reason as you- originals are just too much! I can buy another luger for what a Navy holster costs!

Maybe someday I'll get lucky and find a "deal".