I'm not sure I understand, but here's something to maybe get you started. I' m not sure what the yellow rectangle represents, but I elevated things so it could be seen in 3D. I then added the pink rectangle where the ramp is at its highest point because I'm not sure what your 2nd level is going to look like and the buildings are in the way for anything larger.
The problem with SCARM is that figures above 0" elevation cover the track and make visibility difficult. So, I moved them to Layer 1 where they can be turned off while you are working on the track, etc. The yellow is 1" thick, the base track is at 1.01", the top of the ramp is 8.01" and the pink is 0.5" thick at elevation 7.5".
We'll be heading back to Phoenix from Cocoa Beach tomorrow, so I'll have limited time to check in until we get home on Monday or Tuesday.