What I would look at is the width of the trailer versus the width of the truck. You don't think it is a big deal but it really is. You will need some big mirrors and when you look back at the trailer, you will be surprised at how much wider it is than your truck. It will push you down hills even if you try and go slow. You will struggle going up some hills and probably get frustrated with the whole deal. I towed a 19' Wilderness with a S-10 Blazer with the 4.3 V6 and would never do it again. The mass of the trailer against the truck just didn't work.
Good luck with your decision.
Curly