[Riveted1]

Anyone have a diagram, pic, crude drawing, etc. of the ac system on a '72 burb w/front and rear AC? I'm having a hell of a time finding someone in my area to fix this thing, and so I'm thinking of taking it on myself. PO replaced some of the parts and started the r134 conversion, but I think there is a little "engineering" going on here. I looked through my factory assembly manual, but I couldn't find it (I hate that book! So unorganized!)

Thanks!