This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 While I was going ovre this model, I spotted a lot of mistakes I shoould have spotted before sharing, this has happned too many times, so I'm holding off sharing anymore until I can figure out why I am failing to notice these things as so offten. I have redone the inside ramps, you will notice additional ones. Also I wont be sharing further models du to the shear lack of people not rating my work, if you can't be bothered, then I don't see any point with me sharing any more of my models.