BH23 seatbelt Qs

I am getting ready to order seatbelts for my 67 notchback. When i bought the car it was a semi basketcase and was missing the front and rear seats along with the seatbelts. It was a bench seat car, and will be buckets now.

I have several questions. I can get the repop lap belts from yearone. Did this car have seating for 3 in the back seat, or did it just come with 2 lap belts in the back. Also the price for the repop belts is pretty high. Is there someone else who makes the same exact repop ones that year one sells only cheaper. They got to be getting them from somewhere.

Also since i am missing the seat belts, i am also missing the bolts. Does anybody have spares of these they would be willing to part with?

Thanks
Matt