Floor pan removal and replacement?

The full original section (entire floor and entire trunk bottom) were spot welded in. Replacement is often done in smaller sections. So you plug weld where they hit original spot welded edges and onto the frame, but more likely overlap and stitch the cut parts. Front of floor pan is a downward flange - not easy to get to all the welds. While there could be a procedure for changing the entire floor, that's not going to help if doing sections.cause rust eats each one a little different. Best thing is to search posts for someone that started similar to where you are at. I did left and right fronts plus some of the lower firewall. Here's a couple posts from my build.
Cinnamon 75 Duster \
Cinnamon 75 Duster \