[GreyingJay]

Well the ramps are made of polycarbonate I believe according to my quick read of the field drawings. So my team was just going to build the wooden ramps as per the team field drawings and buy a (very) think sheet to place over top of the inbound ramp surface.

Depending on the fidelity of the sally door and drawbridge we may just buy enough material to build the door surface out of the required material rather than use the spec'd plywood.