Well, the project is back on. I bought a giant, bi-fold aluminum ramp for getting bikes and trikes in and out. It's a full 8' long and wide enough for even my extended axle ATC 250r to fit. The angle isn't that bad with an 8' long ramp.
I also just bought a door. But not just any door. The first Wildlands door from Tern Overland to come to the USA. It looks really stout, seals well and won't rattle. It's expensive, but it's something I'm going to use a million times going in and out and I've found that high quality items that I use a lot, and like a lot, bring me joy.
Tern Overland