I am trying to share the experience. I have several pictures, but I have not found the correct way to attach them. As we put it all back together, someone who has done this heater replacement, might have some suggestions.
Such as, "do we need to replace all the carpet that was under the heater and the fresh water tank?" Does it serve any purpose? What is the little box next to the water heater with electric wires coming in and out? It sort of looks like a fuse box, but no fuses.