I'm having trouble with the meaning of some of the old Scots that hasn't been mentioned yet in this thread.

In the Chorus:
Will ye busk an' gang wi' me? [what does "busk" mean in this context?]

In the second verse:
"Tho my mailen be but sma'.
An' little gowd I hae to show," [what does "gowd" mean?]

In the penultimate verse:
Nane on earth was e'er sae vogie, [what does "vogie" mean?]

Dave