When looking at fuel tanks, I would reccomend paying attention to how far down in the tank the top of the fuel pickup is (specifically, the top of the mesh). I unfortunately wound up with a fuel tank that has the fuel intake high up inside the tank, and it’s a veritcal intake. What I mean by that is the cylindrical shape of filter mesh faces the same way a can/tin of soup would sit on the counter. Older metal OMC tanks (not the pressure tanks) had the fuel pickup tube shaped like a capital L, and the mesh was only on the lower part, so in the same orientation as a rolling pin sitting on the counter. Consequently, there will still be lot of fuel in this newer style tank when the fuel level is low enough for the top of the mesh to become exposed and the motor start sucking air. This reduces your range on the water and is more wasteful (if you replace last season’s fuel every spring) than the OMC tanks with the lower pickup. Looking through the gas cap of the tank on display in the store should give you a clue of the setup of that particular tank.
Why don’t you stay with an older metal OMC tank? If yours became completely rusted out, there are still many used ones available as replacements.