Photos needed of tri-hull MFG 80 Duchess or earlier MFG Gypsy stringers/subfloor/foam

[59Thompson]

I would appreciate any photos and information showing what the framing, floor and foam should look like before I pull mine up. Also if it can be done without removing the cap. The floor is soft in some areas but the transom is fine. PO had not regularly drained the 3 inner plugs inside the well where the transom plug is. Thanks, John