There are many of us who have had trailers in various states of repair and have done varying levels of restorations from frame-off to mere redecorating. I've not done a frame-off, but I've done some fairly serious repairs on a number of vintage trailers. I recently sold a '53 FC to another member here as well, and they've gutted it and are doing a full resto. What info, specifically, are you looking for?
AIR 2053 Current: 2006 Born Free 32 RQ Kodiak Chassis, & 1995 Coachmen B-van
Former Airstreams: 1953 Flying Cloud, 1957 Overlander, 1961 Bambi, 1970 Safari Special, 1978 Argosy Minuet, 1985 325 Moho, 1994 Limited 34' Two-door, 1994 B190 "B-Van"