^This sums it up. I always meant to check with the Levi's store on Newbury (they mainly stock LVC stuff), but never got around to it. They might know of something.
I asked there, and the dude had no idea what I was talking about(real nice for a dude working in a high-end[or high price?] denim shop). I heard that Flavio the tailor on Boylston St does chain stitching, though I've never been to him.