Snap a few photos as you tear them down, save all the old upholstry so if he has questions it's covered... I took my bare powder coated frames, new foam & new covers to a guy that has been doing upholstry for years, told him I had the old stuff & pictures if he wanted/needed them.. He laughed & said don't worry about it.. Then he showed me pictures of his personal 68 Coronet.. I was in good hands.. & he was impressed that he got to work on such nice pieces instead of the crusty junk most guys bring him...