Try Jas Townsend and Sons or it may be James Townsend and Sons. They will sell you patterns, or Taylor-made.
Also Northwest Traders, something like that. Best place to get quality wool blankets and blanket coats. Whitney blankets are every bit as good as true Hudson Bay blankets, and every bit as authentic. But much cheaper.
If you want used, and cheap - go to Goodwill :grin: Seriously. Look through the racks of men's wool dress pants. For a few bucks you'll find something. A light wool dress pant is the ultimate summer camping pants. They breath, and they won't get filthy as you cook over a campfire.
Then go to the women's section an look for a flax, cotton, or linen blouse with long sleeves. You can usually find a blouse with gathers at the cuffs and shoulders.
Then be creative with modifications. You can cut those wool pants off around the knees and cinch 'em up with buttons - wear long knee-high socks and you've got knickers.
Change a few buttons on the blouse to pewter or antlers and you're set.
Let the blouse cover the waist of your pants.
'nuther good trick is to get some white painter pants and cut off the tool loop.