Seat belt suggestions

Thanks for the picture, 66's never had the shoulder belt, this is a modification. The shoulder belt is not attached to the seat belt, it is stand alone. I was looking at where yours is also, and maybe above the front door next the visor, has anyone done that?? Thanks again....
Hopefully this picture works

View attachment 1715000081
Freezerman, are those belts from XV engineering? How big is the retractor assembly at the floor?

Thanks,

Al Graham