I'm not voting either -- I did the Mustang tank. But, if a tank had been available that was centered, 20 gal, and a removable plug for the canister I would have bought it. Don't forget the drain plug.
My tank works good, but if a new replacement was available I would consider replacing in just for looks and a piece of mind. I don't think $150.00 is a bad price! I would not want to do the mods to put in the wrong tank.
just saw in the autokrafters catalog for the maverick, they sell new gas tanks for all but the 70. bummer for me but it was a great deal. around 150.