1972 Demon Seat Belt Configuration Bench Seat

I am trying to figure out the correct seat belts and location in my 1972 Demon.Thanks to a an overpaid "restorer" who stole my original belts,all I have are a few notes and numbers.Here's what I know.I should have 2 front seat belt retractors,tag #3695634-5,2 rear retractors,tag #3695982,2 shoulder belts.tag #3670160.What I am trying to figure out is what other belts I need.There should be at least 2 female buckles for the front and rear retractors,but I also have notes showing there was/should be a set of belts,male and female ends,for the center of the seat,both front and back.So should I have a total of 14 belts? 6 front,6 rear and 2 shoulder? Thanks for any help.