Dolly,trailer or tow?

I personally think that a car hauler trailer is the best solution. No modifications to the toad are required and you can back it up if necessary. You can also throw things on it that you'd rather not put in the MH such as a fire pit, gasoline can, etc. If your MH is marginal in its ability to tackle long grades, however, you may want as light a tow package as possible and then 4 down is the way to go (you should always consider dropping the toad and having the DW drive it up separately anyway). I think the dolly is the least viable option. It adds weight like the trailer does, puts mileage on the toad rear suspension and cannot be backed.