I just picked up what I believe to be a 1981 614 last week also. Serial number is 0015XX. It has the braze-ons along the top tube also. It has a mix of parts, but has the SR Laprade seatpost which I'm using to ID it as a 614.

I would tend to agree that the ones with the cable clamps are earlier models also. The 614 on ebay has the serial number listed as #N3E9C15, which puts the frame bulld as a 1979 I believe.