I built my own for a few hundred bucks , I just used straight 1 inch SS tubes and treads that I sourced from Sam's, pretty simple the only thing was keeping the holes for the bolts that go thru the treads all clocked in the right oreintention add the 1 inch holes thru the treads along with the holes for the bolts thru the tread lining up in the center of the 1 inch hole. all at 23.5 degrees . Made the access from the stern so much better then the vertical ladder that was original to Our 43 DC. Since this photo I have added a hand rail.