Alright, I have gotten some more work done on this one.
Kinda hard to see from the pics, but I have it set up where the gear shift will actually connect to the transmission. I had one of these seats in the parts box, says Fiat on the bottom, pretty certain is is from the Double Dragster set. I made a resin copy.
I scratch built the compressor and re-purposed the air-tank for the airbags. The rear brake lines are ran, and the electrical wiring started. Most of this will not be seen once the body is in place, so I will be rigging it up so that it will be removable. I have been adding a bunch of Grandt Line and similar bolt head detail.For the front end the brake lines will be ran "in the frame".
Also some fine mesh for the radiator from the Red Barron kit.