Newbie has TT with rotted nose and floor

Now that I see a picture of the damage I have a suggestion. On any of the wood you can salvage, get some CPES epoxy wood restorer and sealant (just Google CPES Clear Penetrating Epoxy Sealer). I bought an '85 Wilderness awhile back and under the carpet in the bathroom (why carpet in the bathroom????) the floor was almost completely gone, rotted. And the damage went up the walls. Found out about the CPES and it saved me a lot of time and money (its made for repairing boats where its hard to get to anything to tear out). whenever a stud or joist is only partially rotted, you can scrape the rot away, dry it out and paint the wood with it, it will make it hard and protect it forever from water infiltration. They also sell a product that will replace the rotted wood and build the stud back up. So I was able to save a lot of the wood, particularly the sills, cause when you take them up, it can really affect alignment of the walls, plus tearing out a lot of studs. As I was putting the new joists and studs in, I coated them with CPES so another leak wouldn't harm them. (the leak was in a strange place, it was from the drain vent pipe, little tiny bits of water would run down the pipe, to the floor of the cabinet, then out onto the floor, under the carpet. Doing this for 20 years, finally ruined the floor).

You will need a gas mask cause just a whiff makes you light headed. It comes in 2 cans which are mixed before use and I think cost me about $40 in 2011.