Erma Nazi 22 caliber conversion kit wood box

[mikedavid]

I have a Erma, Nazi 22 caliber wood box conversion kit for a 9mm luger. I am thinking of selling it, but it seems that what I can find in 2019 prices is all over the place. I won't be able to post pictures and put it up for sale for at least a week. I'm just trying to get some kind of high/low ball park price for it, before I post it.
The box is in good shape and solid. On the left of the button to open it, is stamped ERMA, on the right of the opening button it is stamped with Nazi eagle 77 acceptance mark.
Barrel is 7 1/4 inches complete with 2 knurled securing nuts. Barrel is in white with blued extension piece. It is marked 5,39 mm and 3641 with Nazi acceptance eagle proofs 77 and the other with a eagle and circle under it.
The toggle assembly is marked 3641 followed by a b and 4 eagle acceptance marks, 3 eagles 77 under them and one with that circle under it. On the sight area of the toggle it is marked 41 with an eagle 77 acceptance mark and a circle with EE inside of it. also a lot of 41 and eagle 77 acceptance marks everywhere.
5 shot magazine is marked 737. it also has in other areas a total of 3 eagle acceptance marks with numbers that I am having a hard time seeing possible 200, 206, 209, 230, just too hard to make out.
I know you need picture, which I will have later, but I was hoping someone could give me an approximate value before I list it. It all in good shape as future pictures will show.