Before I toss it, since I know there are some wizards on here, I am offering my original MB5 tank for the price of shipping.
I ended up buying another tank and still have the box it came in so it wouldn't be too much trouble on my end. The tank I bought only had rust and pinhole leaks, my original tank that I'm offering has rust, holes, AND a failed Kreem job that could be over a decade old.
Pictures in this thread, outside it actually looks kind of nice. I have since had a friend weld up most, but not all, of the major holes. There was evidence of an older repair where someone brazed it at one point.
Let me know your zip code so I can dial a precise shipping estimate. There are some intense products out there to remove old tank liners at your own risk, tank is 100% as is, no petcock or gas cap.
Not trying to peddle trash, but since there have been so many people looking for tanks lately I thought I'd at least offer.