I am in Gloucester. I have a Sailrite sewing machine. If you like, you and I can try to make them. You and I could try just one and if it comes out good, move on to the others.
I've used Building 21 in Rockland. A bit of a drive for you but good solid shop. I've heard good things about Dirty Water in Winthrop as well.
There has to be one in your local area.