Mired in the mud!

[Now & Zen]

Any thoughts on moving a trailer that's showing only a half baby moon? I just got back from a seven hour trip expecting to be towing a 1966 Globe Trotter. While the photos I saw in advance pictured the trailer sitting rather low to the ground I wasn't prepared, especially in the way of equipement on hand, to find that the trailer had settled into the ground over the many years it has been sitting. My next attempt will involve a transport service who will flatbed the trailer and deliver it to an Airstream repair shop about an hour away.
The guy who runs the service plans to bring a tow truck which he says he'll use to lift the trailer out of the now firm ground. There is only three inches of clearance from the trailer's belly to the ground, the jack if submerged and non-operative and worst of all the stairway if extended and firmly packed in the dirt.
I'm wondering if anyone has any thoughts, suggestions or warnings regarding this process. The body of this trailer is flawless at this point and I'd like to keep it this way.

Thanks in advance!