Just FYI, never done any real work on my own so can't comment on that part. I have talked to Corvette Express in Vacaville when I was setting my C5 up for doing track, they seemed knowledgeable and had all vintage cars in the shop, about 5 bays if I remember right. I finally had the work done at Motor Sports Image in Roseville since Mark is a current track guy with a C5 and was current on my car.
http://www.motorsportimage.com/
http://www.corvette-express.com/
As to parts, you found the Forum so I'm guessing you will find the vendors, and I've found
http://www.mamotorworks.com/
to have most of what is needed by each vintage.
Good Luck,
Randy