Tank is installed. I ended up having to breakout the sawzall to narrow the rear cleat next to the engine compartment. I had dry fitted it but the gel coat ended up being just enough extra thickness to keep it from sliding in. That's what I get for trying to do the right thing. I did not want to screw into any stringers. As I've come to learn, if something doesn't go wrong, you probably didn't do much. As least that the case for me. I was still able to get the screw into the narrowed cleat so other than losing an hour and few layers of skin on my knuckles, all is good.
Put some adhesive back neoprene on the floor and sides. Forgot to get a picture before setting the tank in. You can see the top of one of the strips on the left side. Picked up a 2" wide, 20' strip off amazon for $25. Got the extra length as is seem really useful and will come in handy for a yet to be determined use.
Closed up the tank and put some PB in the joint. Tried to just fill the gap without having it go to deep. If I do have to remove that cover in the future, I'm hoping to only have to cut down the seams and back out the screws. Hopefully I'll never find out.
