Well so far I have the main roller coaster car baked down and even threw a quick texture pass in mudbox on the head part.

I really want to flesh out the workbench of the design, I think between the coaster car and the workbench is what really will set the mood I'm trying to convey.
The coaster car is 1600 tris, where I can reuse the car and its bottom wheel pieces for random stuff in the workshop.