There is a shop southwest of Portland in a town called Newberg named Zig's Street Rods. Don't let the name fool you, they work on all types and years of cars. They have been in business for a couple decades (the current owners have been there for 10 years) and have great customer service. They are also dealers for many of the parts that you seek.
Ask for Mike or Christie
http://zigsstreetrods.com