I highly doubt the issue is light stripes due to that combo. In your pic of the parts, the top left piece, 2nd down was cut to make that firing pin work, you cant switch back to a german combo. Best advice I can give is sell all your yougo ammo and buy romanian/privi. Edit...
I don’t want to cheat any one but Ik it will take time to sell the collection and trade it off. it also will tie up a good amount of my money and well I’m not moving a collection for free. So pretty much how much do you guys offer when buying out some ones collection ???