WHAT WAS I THINKING?!
It wasn't until ToySoldier asked about the shirt and suspenders that I looked at what was there. Somehow the file I put up was only about half of the clothes.
I re-posted the link. It now has seven different shirts, including this one with suspenders, and the POS file has some nice uniforms in it as well.
I don't know if this is like what you wanted, but it's the best I have.
Just in case, here is the link again:
http://files.filefront.com/Das+Boot+.../fileinfo.html