I have a 1996 Astro 1850 dcx and i'm 71 now so this would be a great idea for your dad . I looked at the ez steps but decided to go with the trick steps very easy to install need two people because you have to line 4 bolts up with plates . The people are great to deal with and they can tell you how to measure your trailer for steps . The Astro isn't a common trailer size so its a custom job but no extra cost . Youtube has video . The owner actually welds your steps and work in the auto racing world before retiring and going into the steps . Very nice people quick service and easy to in stall .