Ok, so i am pretty sure i know what i am going to do to mount a cooler on the ski, but not having it yet is leaving me with some questions. Can someone tell me how wide and deep the back of the ski is so i can figure out what size cooler would fit well back there? I am looking for the largest cooler i can fit and will modify it to be strapped down (no rack) to the rear tiedowns and the tow hook. What size cooler do you guys use? Any preference on cooler make?