SEEKING CAL 500 SLOTTED MAG CENTER CAP SOLUTION

I have about 15 or more of those wheels but only a few centers and none of them are bolt on. Instead, they press into the centerholes and are held captive by plastic hooks on the tabs that press thru the centerholes.
If I remember right (haven't seen then in decades) they are in good physical shape but not so good aesthetically.
If yur interested in that kind of thing, I'll go out to the shop after supper and see if I can find them.
Thanks for the offer AJ, I appreciate it. These holes are 3 1/16 in diameter and have the 5 screw holes for mounting. When I had these on my avatar car back in the day, they had the center caps, with some of the ears missing. Unfortunately, they are MIA. Ironically, my caps had Cobras on them.