I can't speak to 80 gallons, or specifically to your generation of Angler -- which may render this info pointless since I think the splashwell is different, but just in case -- I can tell you that the Moeller port and starboard 23-gallon tanks that fit under a post-1986 22 Cruiser are available and can be purchased through any Moeller dealer. They are in the neighborhood of $250 apiece. There are drawings of them in my album if you want to take a look at them. These are the tanks that are being put in the new 22's now, and were also used in some of the 2000's 22 Cruisers (mid- to late-2000's, I believe).