Made some progress today, Pulled the headliner back and installed the attachment points for the new 3 Pt seat belts. I was able to fasten the two bottom parts to the factory attachment points as the car came with optional seat belts back in the day. Got my 67 seat rails attached to the 72 seats. Of course I had to centerline the mounting and re-drill the points as they were different dimensionally both ways. Got the seats all put together and ready to go in the car as soon as I complete the new seat belt install. I will post photos on my build thread when the seats are installed. Thanks to Alaskan TA for selling me seats that exceeded my expectations, an all star to deal with!