Arlen,
I don't know if this will help or not, but here are two illustrations from the period.

The first is scanned from the book Tartans by Hugh Cheape (sorry it's a wee bit crooked):


The second is a painting of Mac Mhic Alasdair, Colonel Alasdair Ronaldson MacDonnell of Glengarry, painted by Sir Henry Raeburn in 1812. His dress is described as "the latest fashion of Regency coat, 'little kilt' and separately tailored plaid."

http://en.wikipedia.org/wiki/Alasdai...l_of_Glengarry

I hope this helps