71 dart seat belt photos

can anyone provide photos of a seat belt retractor installed with bench seat with the kit that upgrades the roof mount single belt to the update retractor set? and or a link to the bolts for a a body and or thread size? this is the most difficult of my projects and the seat belt company is less than helpful other than to tell you it goes in the factory spot, well the car has no belts in it currently and where I think the retractor and the long bracket for the shoulder harness won't allow the seat to slide back due to the retractor hitting the side of the seat, so either the seat is wrong for the car or the anchor point for the retractor is not where I have it located. I did find the mount hole at the headliner and the center mount by the trans tunnel, but without a picture to see where everything is mounted on the new style belts i'm lost.

thanks,