Having grown up in a wreckers driven by my fathere a rock for 26 years, here is my thoughts.. Use 2 recovery straps looped around the rear axle with a 2X6 longer than the frame is wide. Place as far back as you can, even if it over Reese hitch bolts. Once tension is applied, raise the boom as far as possible without touching the "body" of the trailer winching. If it moves 3 or more feet stay with the program. If not a second cable from a drag winch configuration needs to go to a suitable point on the TV. If this does not yield results, then a lot of digging and cribbing.
I had almost the same problem in reverse. When leaving my Tn home, I was backing to allow for the departure angle the trailer dropped to where it was supported by the center jacks. Ended up with a lot of digging and cribbing then a backhoe. Had I thought thru a couple of things about the jacks, I probably would have skipped the digging. From this I learned to carry as much cribbing as reasonably possible. I may need that much at some point, but it combined with somebody else's may be what needs to be used.