As to your formal kilt, you shouldn't have a whole lot of trouble there...just check the Formal Kilted pictures thread for ideas and go to town...

As to your "battle kilt"...when you say historically accurate around here you invariably open a can of worms. There are whole threads and links to many,many internet articles about what's historically accurate for what period...I suggest that you cite a particular time period in order to get better suggestions about what to wear. Variously, you'll be getting the "brat and leine" suggestion, the "great kilt" suggestion and the ever popular "just go nekkid with yer face painted blue" suggestion.

Best

AA