Yeah it probably is too close to trees (about 50ft - will upload a few more pics tomorrow, but a long and thick rope - we already have a 3 inch one - would do the trick) but just wanted to get the general concensus on a partly tongue-in-cheek idea.
The Disco now sits slightly more vertically and the front wheels have been dug out. Will probably try lifting it with a 5 ton digger on catapillar tracks, of which a lighter variant was due to be hired anyway this week for some cement work on an agricultural building.