Yeah, I bought a lot from a place in Germany a few years ago. It was a winter uniform tunic and a pair of winter trousers, a brown summer shirt, but the one with the buttons all the way down. The summer shirt has no badges beyond the triangle and the shoulder boards. They are 539 as well but there was also oberscharfuhrer boards to the same bann, uniform removed so I am not clear on what I have. I was going to assemble some of the other accessories like the straps, neckchief and knot and put it all together on a half manniken but I want to get the period correct as there are so many changes to be aware of. This guy has that band on his triangle so he must have been in prior to 1933.
Do you happen to know what they wore under those dark blue tunics? Was it an undershirt or was it the summer shirt. I imagine they'd be quite scratchy otherwise.