There's 13 first gens. Most don't list VIN's or show trim tags. Shiny cars, but do your due diligence. May be hard to get near the cars to inspect.
124379N644383 - COPO that used to have no drivetrain.
124379N672561 - reputed COPO with complete set of repro docs.
68 RS/SS L34 - 749 interior not available in a convertible.
69 RS/SS L78 10-B - 729 interior not available in a convertible. Al head, but not mentioned.
124378L339792 - car was V-V, now A-A.
I'm curious about the 69 black L78 ragtop...... though doubtful....