Going to assume money isn't a factor in this hypothetical question. And I would be replaced suv for suv as I have my truck too currently.
So I would find a rust free full size Bronco with a 351. A 92 to 96 would be ideal, but a 89 to 91 would work as long as it had the overdrive transmission. I would even take a 302 powered one as long as it had the 4.10s to make up for the lower power output. My 95 F150 has and still does treat me very good, and sooo easy to work on too.
Barring those options. Next in like would be an 78 to 87 Bronco with a Windsor so I can swap in an AOD for the overdrive to replace the 3 speed it would have.
Next would be a 78 to 93 Grand Wagoneer with a 401( pre-83) or 360 (post 83).
That being said. If I could have a GM but not a GMT800/900.
A 2 door pre 1996 Tahoe or even a 90 to 92ish K5 would be next. As I have access to a 400 with a TPI setup I've been dying to put in a truck.
A rust free BlaZeR2would get me by. With a supposed 4700 lbs tow rating, it should pull my boat okay for the distances I take it.
Those are the only things I would be interested in BUYING. I have driven and worked on newer vehicles and no thanks. I'm not even old yet and I will take repair simplicity over creature comforts any day.
Now, if some one would GIVE me a 91 to 95 7.3 IDI single wheel standard cab f350 or late 70s Ramcharger with a 400 or 440....I wouldn't turn them down.