Half floor pans question

If you need to use all 4 of the footwell pans, you’d be better off just installing the 1 piece, OE style full floor replacement from AMD.

Replacing all 4 footwells with the partial pans available will be significantly more welding than the full replacement pan. The half pans might be better than replacing 4 sections, but it’s still gonna be more welding than using the OE style replacement. No seam or butt welding with the full pan, just spot welds.
I agree, if a full pan is available for your year, that’s the way to go. Just welds around the perimeter, less need to make sure your cuts line up perfectly as with the smaller sections and less welding.