At this point, I really think your best option is going to be to get some dimensional lumber, timbers, jacks, pry bars, 10 of your best friends, and lift it as if you were moving a house off a foundation, then slide some 2x12x20ft under the wheel divits and try and pull it off with a ranger or something like that. I agree that the time for waiting for mother nature to help out a bit is behind you at this point. With the nasty/cold weather we've been having lately, it feels as though we are crawling out of January. The reality is that we could go from morning temps being -15 to an afternoon of 40+ in a matter of 1-2 days with the march sun starting to gain some strength. I wish I could lend a hand. Keep us posted and good luck!