I installed two 3-point (driver,passenger) and one lap belt (center) in my '63 and they work great. I don't have any pictures of them installed unfortunately and everything is torn back apart now. I did not weld them as the kit I bought is bolt in with proper backing plates. My belts were ordered from
Julianos. They have a ton of colors and options.
Edit: I used the 90 degree bracket for the driver side, but I had to order a
60 degree bracket from Jegs for the passenger side floor mount.