IIRC the Tacoma is not towable 4 down without modifications. You mentioned a 33' Coachman, is this a "Super C"? If so, you likely have at least a 7500 lb. towing capacity. Most of the newer E450 based Cs have this capacity as well, although the aforementioned tongue weight will erode your payload and rear axle weight capacity. The 16' steel car hauler I used to own weighed exactly 1500 pounds empty. There are aluminum trailers available that are much lighter and much more expensive. The big pro of trailering is the ability to back up without disconnecting, the big cons are the extra weight and the extra 21' of rolling stock that you have to find a place to park at the campsite.