So far I didn’t find any real hidden horrors. No hidden rust, save for the few places I knew of already. There’s is a fair bit of light surface rust on much of the (usually hidden from sight) inside panels but nothing worrying. Even the rear of the floor around the suspension mounts looks sound. I will remove the sound proofing material just to make sure there’s no rust underneath. It has a tendency to trap moisture.
Only real damage I found so far is a dent on the front of the LH rear arch, which has been repaired with some filler ... Time to start on the mechanical bits tomorrow. This time the target is to get everything disconnected.