With all that done, and the rest of the front suspension cleaned up and refitted, it was on with the body work. I was never too keen on the trailer wheel arches and, thanks to the lack of tyre clearance that they offered and the fact most other stuff had come apart, I decided to replace them. The front was easy - I just cut the wings off and bought some GRP Escort Cosworth ones (thanks to XSport Racing for doing me a great deal). The rear was a little more complex, as the rear quarters had been butchered quite badly. Originally I thought I would fit some steel repair panels, but further investigation revealed that this would turn into quite an involved job and, given what the car is going to be used for, it just wasn't worth spending days rebuilding the arches back to standard.
So, the only real option was GRP panels. For rallying, you are supposed to keep steel rear wings for safety, so I cut the trailer arches off and then rebuilt the inner and outer arches so that they were strong, but looked a bit untidy. I then bought some GRP Cosworth rear arches and fitted them over the existing metal work. I didn't want to get into loads of pretty body work stuff, as the car is built to use, but the panels were riveted and bonded in place (using countersunk rivets), and then smoothed using the bare minimum amount of filler.
Anyway, a few pictures showing the process: