Chip,
Welcome to the Parker forum. Not sure where to start here but to answer your question, I have had Kirk Merrington work on damascus barrels and is is one of the best around.
http://www.kirkmerrington.net/
Before you get too far downthe road you might want to find out what you have and make sure the gun is otherwide sound. Any chance you can post pictures of the gun so we can see the gun and the general condition?
Again, welcome
Jay Gardner