Hi Peter, that is an excellent assessment! I've come to the same conclusion with a little research and friendly advice for those like yourself, that know! Thank you! I now, at least, have some direction.
My nent course of action will be the get the correct Nazi rear sight assembly, remove the VZ one, and I guess, solder on the right one?
Not sure if it is something I want to do? None of my elves or hobbits have ever attempted it, ....so far??? More to be done.. time will tell... Thanks again Peter, best to you, til....lat'r....GT..