Pedro,
I have looked in the model RR section of my nearest hobby shop (two hour drive!) for any buildings that may be used in my pictures, not many were on the shelves and what was there was crap. This hobby shop is very involved in R.C. flying models so I did not really expect to find a good selection of HO scale buildings, but I am still searching for the right style of buildings that might work for my pictures.
The model companys should produce small scale buildings like hangers and control towers instead of more planes and tanks. I think they would sell quite well, I know I would buy some products like that!
Airfix makes that RAF control tower kit and fuel truck set, but they are very old kits now and it would be cool if they or another company would make a Luftwaffe version of those subjects.
Matrixone