[1968k20]

So I have this one-owner 67k20 body that I need to dismantle(chassis is in the garage rebuilt). I found an almost rust-free body that I will put on the chassis. My question: where should I make my cuts for the pieces that I want to keep? The roof is dented,right-rear quarter panel is junk,windshield frame, etc. I have room to store the sheet metal for another project.