Good place to find authentic German ribbon bars?

[N.C. Wyeth]

I am seeking an AUTHENTIC, pre-1945 manufactured, German 4-Place Medal Bar that has the following awards (or possibly something similar?):

- KVK (I or II does not matter)
- Sudeten Annexation (with Prague bar even?)
- Austrian Anschluss
- Long-service medal of some type (or something similarly "mundane")
- or possibly an NSDAP award?

Ideally, the bar should contain awards issued prior to about 1940/1941.

Would anyone know of a good place to start looking for a ribbon bar of this nature? I completely forgot to look while I was at the SOS . . .

Thanks in advance for your assistance . . .

Brad