RE: the Andy Stewart version. I don't think he recorded this with Silly Wizard? I know he recorded a solo version with a 6/8 feel on his album "Man in the Moon" here: https://www.youtube.com/watch?v=qnnoYoiK_BU.

Also worth a listen: Jim Malcolm recorded quite a laid back version of this a few years ago, very nice: https://www.youtube.com/watch?v=rvSVT9QxQu8