Bit the bullet today and cut the floor up.
The stringers and the ribs are all gone. So I cut the tops off of all of it with a recepricating saw. Dug out all the old wood. Why would anybody build a boat with a fishbox under a deck that drains to a sealed compartment. just like the fuel tank compartment. Getting ready for the seacast, everywhere. then 2# por foam in all compartments. Wish I could get these pictures to paste on here.