Hi there - I'm a fellow big guy, 6ft 6 and heavy. I've made a few "improvements" to my rv to help it last longer.
for the entrance, consider something like this:
Aluminum Step StoolThe step is great - it's a large target, which works great for my size 17 feet ... the factory steps were so narrow, easy to miss sometimes.
I also bolstered the insides of the dinette seats with 2x4s and steel corner bracing - the oem used 3/4" x 3/4" strips, stapled together!
My rig has a queen size bed built on a platform, that doubles as the outside basement and indoor water storage compartment. I braced parts of it with 2x4 and steel as well.
The toilet is no problem, other than having to basically fold in half to use it (why so low to the ground!).
The shower, forget it. My ceiling is about 6'8 inside, when I have my boots on I walk around hunched over. The shower is built up on a platform another 3 inches higher (so the drain lines fits under it I guess). If I really have to use it, I can fit in there, but most of the time I just wash up in the sink and rinse my hair in the shower. One of these years I'll put some quick connects on my outdoor low point drain lines, so I can connect a mixer valve and have an outdoor shower.
If I win the lotto, I'll get a 5th wheel with 8 to 9 foot ceilings, other than that I really enjoy my little trailer.
