made some progress. I got most of the floor out and first glassed the cutouts to foam fill the stringers. The forward port wedge floor support had seperated. The void wasn't fully filled with foam and I think the floor and fat bead of potter putty caused it to seperate. I filled with foam, trimed off excess and glassed over that to.
Also on the port side, the back of the rear wedge/ stringer had been cut to allow for fuel fill and breather. Was this factory or to acomadate a different fuel cell?
I used some pink foam insulation board to frame the sides. Glassed those in, then filled with foam, trimmed and glassed again. I was unsure about the foam but, figured it would be a good place to experiment cause it wasn't structural. Outcome was good. I can smack the side with a small sledge and it does not compress the foam.
Last picture shows a piece of angled metal screwed to the stringer. Is it a repair or has anyone else seen this?
Next step is to raise the wedge/stringer and mount supports on the inside of the hull for the new floor.