Need Small Block with A/C Pics, Wiring Diagram

The pivot bolt on this car goes through both front and rear a/c compressor brackets with no tapped hole aligned in the head, hence the nut. Yes, it's a weird setup, but appears factory. I'm a machinist, so making spacers is no big deal, but I'd really like to make them as correct as possible.

I've searched the internet and several forums, including this one, looking for good pics, but have struck out so far.