Check for bondo: lips of rear quarters(inner),rear lower quarters ,lower/rear front fenders,esp. passenger. Around rear window molding, seam which runs from rear window to trunk( old drag cars tend to crack in this area) Areas where roof attaches to full quarters(cracks) IMO these were areas of problems ( held water or cracked due to twisting) body men encountered years ago with theses cars. Start there and of course check everywhere else ! floor pans, trunk, area where water exits through cowl. Body lines.
As was stated, from there mechanically, inspect like any other car. All being sound , he's probably in the ballpark on price-----read on for more opinions. Look up old posts.
