I e-mailed your big bro swirlygirl but no response as yet. Problems start in the first verse:

The young MacGregor o' Glenstrea wi eighty o' his men Upon the Argyles ...... wi .... cam The burnin', theivin', Heighland lad drove a' the beasts awa An' left behind twelve dirked men to perish in the sna

I will dig out my transcription and post more verses if anyone can help.