Interior sheet metal replacement order?

[morethanstock66]

Howdy,

I have finally been able to get back under my 66 recently and am needing to replace the floor pans, kick panels, inner rockers, and outer rockers. I am new to replacing sheet metal myself and I was wondering if anyone who had done this before had suggestions. I have a MIG and cut off wheel and the replacement panels from top banana. I was curious about the order of replacement. I thought at first about cutting it all out, measuring the replacement panels, fitting them, then welding them in. However, I also thought about taking out replacing one at a time (cut out floor pans, weld in new floor pan to the old surrounding sheet metal, then move outward.)The problem is that these panels all connect. Should I replace one at a time and weld the same seam twice on the different pieces, or do it all at once. Any help would be greatly appreciated. Thanks.