If you buy the trailer you will love it. My BigFoot 25B25RQ had a brochure weight of 4,800 pounds. Inside there was a build sheet that had weight adds for the options. They added weight for the dual pane windows, the bedspread, the mattress upgrade, the entry steps, the stove burner cover and on and on. The 4,800 pound trailer came from the factory at 5,200 pounds dry. Guess I'm trying to say don't trust the brochure weight. It would be nice to have it weighed but with BigFoot demand you may have to act fast. The BigFoot will be 8' wide so you will need some mirror extensions. The other fiberglass trailers are narrower.
When I sold my trailer (albeit larger) I had to turn away the first three offers due to their insufficient tow vehicles. I felt a half ton truck was the minimum for a 25 ft. BigFoot as mine towed at 6,000 pounds. With a brochure weight less than 2k and a GVW less than 5k I'm guessing the 4 Runner will handle it pretty well assuming you don't get carried away loading it up. Good luck. Fine trailers.