I finally got my wallet out and ordered a new chassis, AND two new sills. All from 2CV City. Unfortunately it didn't arrive in time for the weekend though, but as it turned out it wasn't the end of the world, there was still plenty for me and Dad to get on with.

The rear driverside seatbelt fixing had rust nearby which is a straight failiure. We cleaned it out...



...and put a new plate on.



There was a rusted through area on one of the rear wings as well. We fixed on the inside with a couple of small bits...



This has left a right angle on the outside which we can hopefully smooth down and either put a piece over or just fill.