For back country hunting, I'd get something like this, and then outfit it to suit the trip. Cargo Craft of Texas builds these off-road "themed" trailers for a dealer in Colorado. Wouldn't take much to finish it out to sleeping quarters, kitchen.
https://www.coloradotrailersinc.com/...er-co-i2443047
Have you looked at Nash or Outdoors RV Backcountry series?
Nash 17K
Or just build your own Cargo Conversion, like I did. All 1" welded steel tubing walls and ceiling studs, standard leaf springs for extra ground clearance, trailer floor has ~20" ground clearance. Nearly bulletproof, I've taken it down some pretty aggressive forest service roads, mountain roads, favorite kayak access points.
Teardrops n Tiny Travel Trailers • View topic - 4 kids+ 6 bikes+ 4 kayaks+ 1 canoe+ camp stuff=7x16 CTC
Tandem axle, if you have a flat on one tire, the other three could "carry" the trailer to a safe spot to make the repair, if their is no damage to the trailer. You can also pull one wheel onto a block/ramp, and change the tire on the other one with no jack.
Tandems tend to smooth out the bumps, since they sort of "caterpillar" over rough spots instead of the bounce of the single axle. Tandems do turn a bit wider, and "drag" a wheel in a tight turn/back, but I chose tandems even though I didn't need the weight capacity. They just ride better, and seem more stable on the road. I've gotten into some really tight spots with my setup, and have managed to get out, (nearly got hemmed in at a certain Taco Bell one time... only alternate exit was the drive-thru, and that one wasn't happening).
Example of tandem axle trailer, and the connection of front/rear axles.
So more tire cost, more maintenance, but to me well worth it. I also like that they back up straighter, easier than a single axle, for those times you venture down the road, only to find a tree across it and the open spot is about 100 yards back! Now if the trailer isn't too heavy, you could un-hitch and turn the single axle trailer around, probably not happening with a tandem.
This guy has one of my favorites, simple, effective been running it over 9 years to support a fly fishing habit:
Teardrops n Tiny Travel Trailers • View topic - 6X12 Haulmark "Fly Fishing Camper".--UPDATED!