Electric station of solar water heating system from sunlight sun collectors on thermo electric station

3d mode asset l for game  have 3 blocs and 6 elements 

elements:

1 solar panel

2 metal cage

3,4 side pipes

5,6 central glass and black pipe

4k textures  3pack (metal cage, panels and pips)

I made this  model for UE4 

cage and panels have 8.3k faces  pipes have 24.4k faces