Most of those type of belts do not have retractors, they adjust like the belts on airplanes. They used to sell spring loaded rollers you could put in the belts to roll them up when not in use. Just have to make sure they a pulled all the way out when you adjust the belt for tightness. To anchor them there are a number of places that sell anchoring kits that have large eyebolts and wide thick washers to spread the load. You should be able to get the anchor kits at the same place you cound the belts. Locate a suitble place in the car floor to drill through to install them. Make sure the floor is plenty sound, and reinforce it if necessary. Arctic white may be difficult to keep clean and new looking.

Good on ya for putting belts in the ol' Chebbie. I just read about a bad crash in a 62 Studebaker where the occupants were not wearing belts. Both were thrown from the car, the woman passenger died and the driver's back was broken in 5 places, he is still in critical care. The accident was not their fault, the driver of a rental truck clipped their left rear fender and spun them causing the car to roll 1.5 times.

Safety in vintage cars should be a concern for all of us who drive them and carry our loved ones with us.

Pat