Well, we did it! Finally replaced the outside steps. Now we no longer have to carry that extra step we used on the ground to get to the first step AND no longer have to make the ~11" final step through the door.
Went with the 5 step model (A8005) and it fits perfectly on* a "mostly" level sites. Only issue I can see is if we get a site with a more dramatic slope up from the door side.
If we get in that situation, we can just remove a step. Also, getting the "extra" step with the unit saves at least half the cost of adding a step later.
Next will be those TALL inside steps.......