The flat tow set up on my 2000 Mini Van 3.8l , 41LE trans , cost about 3K Canadian , 10 years ago; tow bar, base plate, fluid pump and brake system, self installed ; so I can see the reasoning behind a dolly cost wise .
BUT , considering my long term commitment to the coach and toad and the flat tow convenience worth ever penny . Under 5 min. hook up under 2 to disconnect.
JM2C worth .
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.