I found My Own Tuxedo and picked up a Charcoal Grey Full Dress Tailcoat for $20 ($33 (?) with shipping)

http://www.myowntuxedo.com/detail.aspx?ID=570

I converted it in to a PC in about 12 hours. Picked up Celtic Knot buttons at the local JoAnn's and I think the final cost to be about $45-$50 dollars. I am now working on a vest to go with it. I hope to post picture as soon as I finish the vest.

The task was not hard just a lot of hand sewing.