I have the 30 DS also.
I am using the Acme car tow dolly.
Acme "EZE-TOW" Tow Dolly - Car Tow Dolly
I like it a lot, but it is not quite as light as they make it sound. Still one of the best ones on the market.
If you get one, go for a hitch with an 8 inch or so drop. I started with a 4" drop from our last MH (class c) and it was not as level as I wanted.
Thanks again