As an afterthought, having a toad with all that extra space is very tempting to fill it up with extra items. And if towing four down be sure and have a breaking system on the toad.
Interestingly enough, the tow bars of yesteryear were very basic .Saw many Jeeps being towed to the desert recreation areas and beyond and no brakes on them, not sure when it became a law.
So if you tow with a dolly that has no brakes how do you explain that gray area. You have 5K behind you with no brakes but if it was 4 down you would get scolded on here for not having a braking system.
Discuss and get back to me....:h