I towed my Studebaker from Lake Tahoe to Detroit in 2003. But this car was a roller with no engine or transmission. My Ford Ranger had no problem moving the car, even through the mountains. But without the engine, the car was only 2500 0r 2600 lbs.

Tow dollies usually have recommended weight retsrictions for their use, and they are usually made for today's narrower cars. I don't think that T-Bird will fit a tow dolly and do it safely. I agree with the above ideas to use a two axle trailer.