I elected to make up a support structure from some 12" 1 1/2 x 1 1/2 wide aluminum angle i had in my aluminum bin. Cut two lengths 5 1/2" long and clamped them to the base well centered and drilled out holes matching the base. Attached them to the base with the existing hex cap screws. Two worked, two were too short. New ones on order along with better nuts.