Tanzer 31 fuel tank location

We have a Tanzer 31 that has been completely stripped. Can’t seem to figure out where the fuel tank went. The diagram on sailboatdata.com is not clear enough to read. Is there anyone out there who might have a better picture of the floor plan or could just describe where it’s supposed to be located and how many gallons it should be? I did find the fuel fill up top on deck but… no motor, no tank, no pictures, no clue.

Thanks in advance

Hi sa, information from the builder indicates a 20 gal fuel tank. Sorry to say placement is unclear although a drawing appears to indicate a tank just aft of the engine.