Really any mass produced dolly will work for that set-up.
From the super strong Demco KarKaddy, to the lightweight Acme EZE-tow...there are many brands...Master Tow, Stehl, American, and Landgrieb to name a few.
It all depends on what you like and want.
Which ever brand you pick, I hope you opt for brakes on the dolly. Brakes are not required by law in many places for RV's towing a car, but it is smart and safer.
Kim and Steve, Mustang LCDR (Ret), '07 Damon Outlaw #1193
I have seen gross intolerance shown in support of tolerance, Samuel Coleridge
WE LOVE OUR OUTLAW RV