Project WWII Russian Armored Train OB-3 part I scale 1:32

Hello. I would like to make complete model of Russian Armored Train OB-3 type in 1:35 scale(first stage to make it in 1:32 scale). Now im posting only top of armored wagon. I didn't found at the moment platform, so it would be a next stage. Maybe someone will help me with this :) But its not a garden model! i printed tons of 1:32 trains models posted on thingiverse. I would like to use my model with my tanks of WWII collection in 1:35 scale. Im still working on it.

I think my model complete