[Ingsoc]

This may be a dumb question but why do you want to modify them? any serious TR collector would consider them "fakes" (as they are not TR era) and if you a reenactor why don't you just buy repro uniform?

And on a side note, DDR millitaria is very cheap now, however as the DDR no longer exist and hence no DDR millitaria is being made, I have the feeling that in a few years the price of it will rise sharply.