Considering 21' TT w/slide & V8 SUV

After catarac surgery and now floaters after retina tears in both eyes which affect my vision, I am going to have to sell my Class C and am considering a 21' with slide with possibly a Dodge Durango 5.7L, Toyota Fourunner or Jeep Grand Cherokee all with V8's. Its the MH width that I am having trouble with at 101" whereas the TT would be 8 feet or less in width and easier to drive in narrow areas and construction zones (they are all over the place & too scary with tractor trailers wandering in lanes). I figured for safety I would try to stay under the tow capacity by 1800 to 2000 lbs and some 21' TT are around the 3500 lb mark. So I thought fully loaded to be under 5000 lb. and thus 1800 to 2000 lb under the 7000 lb limit of these suv's. Is this a reasonable set-up to consider? Thanks for your feedback!

Dave.