I called a few people on windows - craftsman group, renew restoration,
http://www.renewrestorationinc.com/, and mozerworks.
http://www.mozerworks.com/window-restoration.htm
All seemed good, but pricey: for stripping paint and restoring to full functionality, more per window than the cost of installing new wood windows. Also, for economies of scale, they liked to do a minimum number of windows - six I think.
Maybe one of them would be willing to do a door, but I would expect to pay a lot.
Otherwise, someone recently posted on here on a place in Maryland that will just strip the paint off of interior doors for a very reasonable price. Combine that with a painter / wood finisher and you might be able to do it more cheaply.