You guys are stoked!! Congrats on a great rig.
Fyi I've been off and on with stair use too. Got a sturdy ramp for my aging big pooch to get in and out of the truck cab, and realized I could use it for the camper entry too. If you're sure footed ( first thing before coffee being the danger time ) I've found this is a pretty good option. I don't think my camper door is as high as yours but it's a newer F350 so it's high enough!
Hope to see you guys out there