I know they fit, and are original parts, but Gawd! Those ratchet bolts look shocking. When so much else of the work you have done is to a high standard, have you considered new replacements?
Third Gen Automotive sell a lot of NOS original parts and complement that with a range of quality repro parts.
Often, either to clear the shelves or to stimulate interest, they list Ebay auctions starting at $0.01.
https://www.ebay.com/itm/39360307813...8AAOSwr8BeO6FJ
You might need to ask a question first to confirm the hex size to ensure it will suit your situation.