Fuel pump access

[fetcher]

Looks good to me. Being lazy, the "It takes a little time to mimic the contour of the floor and to weld up the four pieces into a nicely fitting frame" part is what I chose to avoid at the time. I would push something over the tank, maybe sheet metal or masonite or whatever I had to protect from the jigsaw blade. I think it's going come out really great for you.