^ That would be my ultimate expedition setup as well. (I might have a Dodge though.... lol).
Look at a setup like Bedlams on here and then scale back the camper and truck to your needs.
The more I think about it, a Dually makes all the sense in the world for what you’re doing. First is the security of extra tires and stability. If you bring one spare, youactually have 3 spares if absolutely necessary. Second, dually tires are typically smaller, less expensive and those sizes are super common and I’d imagine more readily available than if you shoed up a SRW with big tough tires.