Thank you all!!!
This one started as something normal, and ended up in something completely different...
Rendertimes were reasonable, depending on the scene, but only in some cases it was more than one hour per frame.
The ISS
interior model is the one by NASA:
https://nasa3d.arc.nasa.gov/detail/iss-internalIt's a blender model, and it's not very detailed, but it depends on which stuff you put in.
The cable mess for example is created with the Ivy generator. Without leaves of course.
And yes, the Rickenbacker (I love it!!) is a free model, but I don't remember, where I got it from.