In terms of purchasing a kilt, I've got to recommend MacHummel and his work at Canadian Casual Kilts. Mine was ready in 5 days after ordering and is a magnificent piece of work. My wife and I have dinner parties every Sunday, and except that I don't have a proper belt yet, the kilt has been a hit every week since I've owned it. Black Stewart is a fine tartan that I have used formally and informally. Check out www.canadiancasualkilts.com.
K.