Beautiful old camper, congratulations! If you go the pickup route, I’d go for an F-150 or gm 1500. Avoid the Ranger. I know a lot of people like them, but personal experience (my dad had one with the 4.0) is it was a POC. Nota month went by where he didn’t dump money into it. He finally donated it with only 75k miles on it.
If you go the SUV route, the Envoy/Trailblazer would handle that trailer with ease. I towed a 3500# tt with an 06 Envoy with no problems. It had some minor issued, but never anything major. The straight 6 had a lot of torque. And they’re cheap.
Good luck with the vintage trailer!
