John Wayne wrote:
I would think you will have to work from the inside out, and try and leave the out side skin intact.
I too think this is the correct approach. Looking at your second picture, if you can get the cabinets, etc out of the way, I'd try to grind down and reinforce from the inside those visible cracks. They'll need a fiberglass repair on the outside also, but a couple layers of fiberglass on the inside will make that crack repair much stronger. Of course, do this before rebuilding the inside structure.
If you can build fiberglass components for the race car, you can certainly do this repair.
Keep us posted on the outcome as we all like to learn how.
Fred