Modern 3 point seatbelts in `67 Chevelle?

[VintageMusclecar]

Getting down to some of the last (mechanical) details on my heap, and seat belts are on the short list. Thing is, I ain't all that keen on the simple lap belts, I would really like to install a more modern 3 point retractable system up front. (I'm not really interested in the original [and ultra-rare] seperate shoulder belt option)

Has anyone ever swapped in a set of 3 point retractables into an early A body? If so, details would be greatly appreciated.

Obviously, aesthetic authenticity isn't much of a concern here, but I would prefer something that's available in black, and something GM would be a plus.

As always, much obliged.

Eric