Better check if the minivan is light enough for towing behind the motor home. Our minivan was too heavy. We bought a Honda CRV. I miss the Dodge MIni, but have bonded with the CRV. I was surprised how much room the CRV has.
Sometimes we travel with our grandchildren ages 11 and 13. Our 29 ft 2003 Winnebago Minnie with two slides works great. Sometimes I wish we had the overhead bed instead of the entertainment center, but the dinette and jackknife couch work great. The children continue sleeping as we travel.
Our conclusion is that if you are going to travel, a motorhome works best. If you are going to mostly stay at one place, then a TT would work. Or a Fiver would work if you invest in a 3/4 ton pickup. Now that we motor around, we prefer the motor home. Sometimes we tow a car, sometimes we don't.
Good luck.
Mike Leslie