Repairing/Fixing/Need Tools?

A car buffer and metal polish work great. Depending on the size, X brace both left and right and forward and back. If you X brace with angle iron, you would need a drill, drill bits, bolts, nuts,washers, lock washers and the proper wrenches (pliers x 2). You can X brace on the inside also with plumbers strap and screws. Pre drill the holes smaller than the screws and use a drill to drive the screws in. Probably your easier fix.