Removing the fridge.

Well, I just purchased a 1994 3023 and the fridge doesn't make cold. On propane I can hear the ammonia gurgling. Service tech says it's probably a goner (based on my description, he hasn't seen it). He said I might try removing it and flipping it over to break any locks in the line. This seems like a monumental undertaking. I have removed the rear access panel. How do I get this thing out? Any other advice or comments about my problem are welcome.