It was crustyier than I thought, so I cut off the edges so I can make a patch next time I get to play in the garage,
Petrol Tank painted

The crusty floor behind the rear passenger arch

And the floor cut back,

I took the overhang behind the rear arch off too, id given it some bridging filler before, it looks like it will be more work than the other side but ho hum, when the tanks refitted I'll turn the zook and I'll be able to get to that side and give it my full attention,