The Ranger shouldn't have any trouble with that trailer provided your expectations of it are in line with its performance.
But appears others know more about its potential downsides than I.
Regardless of the specifics of this particular model, you're looking for something that's 20 years old and even if you're very mechanically inclined and have a lot of tools, it could quickly and cost as much to repair as it cost to purchase. If you don't, anything beyond simple repairs could be cost prohibitive.
Meaning, on a serious budget, it's not as much about the brand or model you buy, or the gas mileage, nearly as much as it is about finding a suitable vehicle in the best possible condition and best maintenance you can afford.
It is about finding one that doesn't have known major flaws, or ensure the flaws have been rectified (like the timing chain thing with the 4.0s apparently).
It's also about finding something that isn't going to be at its now 20 year old limits doing the towing.
Unless you're putting on a LOT of miles, fuel mileage won't make as big a dent in your finances as even one significant repair. So don't let a few mpg cloud your judgement over getting the right vehicle.
On that note, Trailblazers are not known to be super relaible either. Personally, I'd look for a 2wd 1/2 ton. It'll get nearly the same mileage and the truck won't even breathe heavy pulling that little trailer, which is better on aged or aging components.
If I was buying the easiest to repair, most reliable and also capable truck on a budget, I'd be looking for a GMT 400, 90s model Chevy/GMC. And if you're lucky to find a manual trans one, particularly one with a NV4500 trans, that would be ideal.
Good luck truck shopping. And cool looking camper!
