Despite having a Volvo (pretty ideal as a towcar) I have "souped up" my Bulldog stabiliser by tightening it to about one and a half times themanufacturer's stated tightness, and it is awkward to get on and off but pretty solid once on.

I tend to bend speed limits (60 mph max here in UK, with a caravan on) but I never fail to be amazed at the number of people I see towing at over 70 with quite small towcars.

Volvo state the max weight my Volvo can tow as 1800 Kg(!) but with a max speed of 45. A Volvo weighs about a ton and a half, so the usual "85% is good but 100% is the absolute maximum unless you have a Landrover" rule would limit one to about 1500 Kg and a lot of the big modern vans are right up to that once laden.

My little van is probably only about 900 Kg laden.

I'd love a US 5th Wheeler with wind-outs, but where would I keep it and what could I tow it with? And how long would it take me to get anywhere?