I have the Leprechaun 319DS, and understand why you want to add the drop step. I believe that they designed their units this way to avoid the drop steps altogether, but it is still a bit of a step down or step up into the coach. After considering what you want to do, I ultimately went with a portable step (
Camco 43676 Adjustable Height Aluminum Platform Step). That may not be the route you want to go, but it works well for me.
Michael & Anne
Retired and loving it!
Macedonia, OH