During my Germany visit in June, I was able to visit Joachim in his house in Rheine. He is an amazing artist in 1250 paper craft. His 1250 models are not as detailed as HP Weiss or Thümler, but his production volume is impressive. And you can purchase his models on E Card for a few $'s.
Here are my photos from the visit in June:
https://www.icloud.com/sharedalbum/#B0m5i62zr2EZeW

And here is my USS FORRESTAL CV59 that I built from Joachims E Card files. The planes on the last photo are metal 1250 planes, not paper
https://www.icloud.com/sharedalbum/#B0m5QDa3dkw1NH