My parents are building a new home next to ours here on my property. I think after they are finished with it, I am going to sell our big home, move into that, and use it as our base. I am currently looking at used 28-32ft class c motorhomes. I am budgeting 40-50k cdn on the unit. Then I am going to bring it to U joint off road and get a full 4 wd swap into it. 80% of a earthroamer for 10% of the cost. My wife and I have been discussing this for about 2 weeks now. From the sale of our home we can buy out my brother on the parents home. He's not interested in owning it, and have enough to get the rig, and pay for some travels as well. I think this is the future for the A.F.T. Family. I am also getting back to working remotely full time ASAP. Enough of having to go into the store part time.
The Ujoint system is very capable. While being 28-32ft will limit some of the places you'll be able to go, the comfort when you are at places will be enviable. The common advice for rig selection is: "get the largest you're comfortable driving and the smallest you're comfortable living in." It seems to surprise many that after being on the road a while, when asked what's the best thing about the rig, almost everyone answers the fridge...not 4x4 as expected. It's a lifestyle so it has to be livable.
I haven't researched class-c motorhomes in a long time but IIRC Bigfoot and Born Free are/were very well made. We once owned a Bigfoot 25RQ travel trailer and that thing was fantastic, one of the only things we wished we still owned. We've seen a Born Free that was converted to 4x4 by Ujoint and it was impressive. Many people may scoff at big rigs but people are driving them all over the world. There is nothing better than having a get together in a big rig with friends when the weather sucks. We've also seen US and European Class C RVs all the way south, off the shelf with little to no modifications except AT tires. There are several things we'd recommend changing since we've seen the problems but if you are not planning to drive outside the US it may not be worth the cost (switching the fridge to a 12v one if you plan on mostly staying off grid would be beneficial).
And people think our van is big (the last van is 2wd and a dually)
Another perspective
We've also seen 6x6s and 8x8s, all converted military trucks. Drive what you want to drive, live how you want to live, and when you can...get out there. Good luck on the build.