I have a (very) old Esther Williams above ground, 18 x 33 and I am in need of top rails. I do not see any on your list that match the existing rails which are about 56 inches long. I need 12 top rails and 14 top caps and possilbe 2 side rails. Please advise. It looks as tho there are not any rails that will be long enough to replace the original rails. What would my options be?