Seat belts: what GM cars w/ shoulder harness?

[Chevy454]

The wife says if I'm gonna be knot-headed and use my '72 Suburban as a daily driver, that I'm gonna have to get some shoulder belts so she can quit worrying about the kids...admittedly, she's got a point.

You could get the 3-point type shoulder harness on the '67-'72 trucks/burbs, but it's a super, super rare deal...so are there any other GM rides I can steal some belts out of? Most guys use a set out of the S-10, but they don't look anything like the originals, which is kinda what I'm shooting for...the shoulder harness type like in our '69 Camaro would work I reckon, but since it's a totally seperate belt & buckle there's gonna be double the parts...any ideas? I love the look of the old big buckle belts like are in the 'burb now, any chance there's something relatively *close* in another model line? A half-way close color match would be ICING...