Update:
We got a tow dolly after all. With REMCO & VW both saying it wasn't flat towable, it just made sense. Its a Tow Master with surge brakes so I don't have to consider a supplemental braking system or how to keep the toad battery charged. Plus, we can change the toad without having to install a new base plate or make any changes.
The universal fit straps that came with it weren't easy to setup so I got some smaller size ones from Amazon for $28 that are much easier to use.
If it becomes a nuisance and we want to change the toad to something 4 down towable, selling the tow dolly will be a breeze. They don't last long on Craig's List here and sell at a premium. The dealer we got the MH from gave us a great deal on the dolly too.
Just wanted to say thanks again to everyone for your thoughts.
