Small Woman's Waders

My gf and I are heading to Montana next week. She has a pair of Simms wading boots and has been wet wading with me. Now that it's getting colder I need to find her a pair of waders. Pants are fine and probably preferred. She's 5'5 and 100 pounds. She wears a size 7 boot I think.

Would prefer something in the Seattle area so we can get them before we leave on Tues evening. Could also pick up in Spokane or Montana on our drive over.