Mike, mine is an 84 and the tank is under the console.
I dont know what kind of project you are looking to get into or where you are located but I know where you can get a cuddy cabin for about $2000 with a 150 hp Johnson fast strike. The transom needs to be replaced. By now he may take even less then $2000.
Let me know if you are interested. Here is a link to my gallery with pictures of the boat.
http://www.wellcraftv20.com/gallery/For-Sale