Today I set out to start the floor repair. I removed the street side skin and then cut out the rotted section.
The outriggers looked really good but since I had some leftover POR 15 in the fridge, I gave them a quick coat.
I then cut some 5/8ths plywood 3 inches wide, applied construction adhesive and screwed them to the floor as splice joints. The replacement piece will go in after the POR 15 cures.