Got the tank cleaned up a little and filled in the area that had the valves and gauge. The inside of the left door opening had drooped or dropped noticeably, after the doors and top gauge/vent area were cut out. During welding we got a big bang and notice one of the welds had broken. When Tom finished welding we noticed the droop or drop was visibly gone, measured and found less the 1/8 difference from one side to the other side of the door.
And built a fire pit for the wife