Assessment
The first job when I start on a project like this is do an assessment of the likely work. The pictures show the readily visible problems. I envisage one I start stripping it there will be more! The good news is it runs!. Watch the video! The outer sills apart from a small repair at the front seem ok, but the inner sills are going to need the bottom 3" renewing. The rear spring hanger are a notorious weak spot on the P3 and this is no exception.