I have the same issue with very rocky shores used 2" sch 40, 4 90's 6 T's 3' long, drilled holes in corners so wont float away no legs so the T is the base ie wider at the bottom, put the 5" riser between the T and elbow, stands sits on the rocks, ski sits just out of the water, the extra center cross brace helps prevent any flexing of the end pieces.. DONT CAP IT it will want to float away..drill holes in corners, best solution i have found.