It depends on how often you want to get away and how far you will travel, some folk have a dedicated heavy tow car , say a Pajero and a smaller car for running around in, I decided the other way around and have a Santa Fe, as the tow car and the run around , but with a van that heavy, I would prefer a heavier tow car, as I like towing with an Auto, the Auto Santa Fe is limited to 2000 kg.
Maybe an old Range Rover or a large Kia, or a heavy Merc.