I have a good variety of old stock Merriman lifeline fittings. Pelican hooks, gate eyes. Lashing eyelets. Screw on a swivel swage eyes. 3/16" with 1/8" inserts available and also some 5/32" toggle jaws. These items are 40 plus years old but only slightly tarnished from warehouse storage.
Send a pm with you needs and a picture of the parts you want to replace.