I have 2 - 25' aluminum "C" channel pieces that I would like to put a consistent (2' rise) bow in the center. They are 6" tall and 2" wide and approx 1/4" thick. The use is for a ramp down to my dock and would like for it to have a professional look without any kinks. Does anyone have any input as to how I might be able to accomplish this? Cheers