I've got the same problem in Rutherford county in Tennessee. Bought trailer like 8 years ago. Paid it off a couple of years ago, now I'm wanting to move it out of the park onto some land. But it is so restricted around here that if I do end up buying land I'll probably end up buying it from a surrounding county that has very little jobs and miles from real civilization.
For those that want to see some real trailer trash go to:
http://www.missouritrailertrash.com/
maybe someone can link that for me and others.