Rick-
I was comtemplating a smaller 20' stacker at one time and it was more reasonable in weight and all and I wouldn't rule that out. I'm not sure what the dry weight of that would be but if your putting a light car like a 911 and some bikes it probabey is under 12,000 pounds loaded I'm guessing if it's alluminum instead of the stainless "companion trailers" that match our buses. I've been traveling for 4 years and never once towed a car and never once have a regreted not havng a car but I'm about to convert my bus to run on waste vegatable oil and put the dirty and clean tanks and the filtration system all self contained in the back of a pick up truck to use A) as my pull behind fuel supply and B) as the runner to retrieve 250 gallons of waste oil from several restaurtants so I dont' have to hunt it up with the bus and C) as general transportaion which I've never missed but if it's there, I'll probabley use it.
I think the toad and/or a trailer or lack of one all depends on your "style of traveling". If you dry camp a lot and stay on city streets like I like to do then even the toad becomes impractacle, especially when your getting lost and making lots of u-turns down small side streets. If you stay for a week at a time in an RV park then I guess the toad/trailer makes sense. I've always just found it easy to drive the bus where I need to go if I don't want to take a cab and if there isn't anything dragging behind me, then manuevering the bus is siimple and easy to do it that way. I'll probabley hang a scooter or some bikes on the back of the pick up truck and keep a surfboard or windsurfer on the roof of the truck cap. I've always wished our buses had ladders and were more practiacle to store things llike that on the roof but even with a ladder, the roof airs get in the way unless you have cruise airs.