So, this is going through the wall into another room?
If you use the O84, you have to live with the 8' wide end, but you can squeeze the the center heading to the elbow.
The way that you have the inside elbow would require that it all be trestle or elevated support. Keeping it as terrain creates a large visual block to the area behind it.
ScaleTrax would be ok. Sometimes hard to find. The switches are a limiting factor with the lack turnout options.
