So I have removed the rear subframe and all that remains with the body of the car is the wiring, the dashboard and the heater blower motor thing.
The goal will be to sand and degrease the undercarriage before coating the bottom with some POR15.
I only found some minor surface rust. Especially where the brake line tabs connect to the body.
there was some rust in the forward floor panels that had been repaired before. Welding job clearly Needs some additional love.
here are the latest pics.