Thanks to all for the warm welcomes and replys. This reinforces what I've been finding. Unfortunatly, none of the sites that I regularly use cover Scottish attire from that period, and I've been hitting a lot of walls elsewhere. Most sources online are questionable at best, so when I happened across this forum I figured it wouldn't hurt to ask around.

I normally use effigies and manuscript miniatures to research, but none of the dedicated sites cover Scottland. Thanks to Woodsheal for that effigy. I'd say that he's wearing a gamboised gorget and akatin (padded long tunic and collar).