fuel tank

[rntim1]

Anyone know the stock dimensions of a fuel tank to go into a '85 20 ft MA? Have a chance of getting a good deal on a 52 gal. tank that is pretty new but don't want to pull up the floor to measure my old one if possible. The tank I'm interested in is 60" length 24&1/2" wide 10" high. With consideration of brackets, total height is 11&1/2". The total depth of the tank I think is my biggest concern as I do think length and width will work.