These responses will help me extend the posted body cart / "Jiggy cart" capabilities, which I will explain and document in a post once complete.
As for the work and welding, my son graduated UTI autobody and fabrication school and also is a certified welder. between the two of us we have the skillsets required, but arguable... Dad's always right. :p
There is very little salvageable metal on my car requiring a new tub to be assembled. I will document the entire build, which begins this weekend.