Thanks, Leroy. It fits great.
With the bracket, I can move the lines without movement transferring to the cooler itself.
1/8 x 1 x 6 bar, bent the edges to stiffen the bracket. Couple 6mm body bolts & clips, 3/4 clamp, clamps tightly. Used a 7/8 clamp on the left side, its stiffer and...