We ultimately decided to drag the car on the trailer. Nowhere near as fun as driving it, but this did afford us the protection from a faulty fuel level sending unit (stuck on full) as well as the occasional stall we've gotten coming down from highway speeds. Some detergent will fix the fuel level sender, and Corey is working on the tune to see if we can get rid of the seemingly random stall.
We'll roll out with everything except the ZR-1 in a couple days. The list on the ZR-1 keeps growing. Eeek!