I'm not sure this will help you since we have different issues. We bought a steel deck (from Sunrise Decks in Texas) (57 x 57) that when put together has five steps going up to the deck which is level to the RV door. Yes there are more steps but I have them very close to each other which makes it very easy for me to see and not trip going up or down the steps. It's about half or less than half the height of the RV steps spacing so there is no strain. We visited our kids and grandkids in Florida this past winter and our daughter who does have leg and lower back issues found it was great for her to get in and out. You might ask Mark at Sunrise if a ramp would work better for you. Best of luck.