HI Stephen,
I'm pretty new to figures, having fallen under the spell at the Boston Expo. I'm also new to the crowd here and have more questions than answers. But, may I ask what medium you're scuplting in? It looks like two different types.
One thing I can add to the discussion of your great figure; I was a pretty hard core Highlander reenactor a while back and was fortunate enough to be well schooled in Highland uniform rules by a 3rd generation memeber of the Black Watch; what you're man is wearing below the waist are referred to as trews. Also, if you haven't decided on a tartan, you might consider MacGregor, as it is just green and black on a red background and about as simple a pattern as they come. The pattern, or, more correctly, the "set" of the tartan was more complicated and had more colors the closer the family was to royalty. Hence, Royal Stewart is the most complicated and the poor MacGregors were pretty much at the bottom of the ladder. The good news in this case, however, is that it would be a helluva lot easier to paint!
Good luck with it and thanks for inspiring a new guy.
Michael