My new track toy is a former ITB car, and has just the drivers seat. I bought the car as an HPDE only toy. It's been a few years since I've run HPDE, so for my first few events, I'm going to run in the novice classes, where an instructor will be riding with me (or I'll ride with the instructor). I don't want to pay as much for the passenger seat/harness as I did for the entire car.
Suggestions for a low cost way to get a seat and harness into the car for a few events? The harness cost isn't a big deal, they're fairly cheap for a 5 point one, but not sure about proper seat options to use with a harness.

