71 dart demon seat belt installation

This car I'm in search of is any photos that show the shoulder belt for a bench seat installed at the roof line if it even had it originally. The kits i'm looking at show it fits the stock locations but have yet to locate instructions or a photo of them at the stock locations. Then a referral of where to get the bolts would help, I found the B-body listing for the bolts but once again not sure that those would work. Thanks,