Quick & dirty fix... The access isn't good enough for my hack welding skills. I had some ~1 1/4" steel angle laying around, and grabbed a couple pieces that were long enough to span across the two 2" square tubing beams that hold the tank up. I picked up 4 small (2 1/2" opening) C-clamps, located the tank where I wanted it, and clamped the angles to the top of the support beams, against the sides of the tank. As long as the C-clamps don't work loose, this should work well. Here's a pic, not sure if it will help or not.