Do you happen to know your gear ratio offhand. I ask because that will make a difference in towing. If you have the proper gearing I see no reason you couldn't get a decent size true light weight trailer. Back in 05 we bought a Cherokee lite 28ft TT (31 foot total length and 5²00lbs dry). Loaded it was 6500lbs. I rowed that with a 97 Dodge conv. van with a 5.9L and 3.90 gears. I had no issues towing through the Rockies on a 3500 mile trip. I think you can find something that will fit both your family and suburban. It is just going to take some searching to find it.