Can Someone Please Tell Me What Center Cap fits my Wheel!

I'm having some trouble finding a center cap that will fit my steel wheels on my Apache. I don't remember what they came off of, since I bought them from a guy on here, but they are some type of Chevy wheel. The center ring has outer flat tabs that measure 10.5 in from outside to outside. Now, the biggest I can find in anything is 10.25 in, so what the hell will go on these things? I really want to get the Ford styled ribbed center caps like in my rendering, but I don't know if I can find them anywhere. Any help?

 

Why not run a full size wheel cover instead of just a center cap and beauty ring?

 

Ford caps 1949 up should fit.......

 

late 60,s-mid 70,s chevy dogdishes should fit

 

Scrap Metal, the Ford caps snap on from the outside?

 

Those are a little bigger than what I'm looking for. I may just have to get different rims if I want the caps like in my rendering. My other option is just to use full dog dish moon caps like the Hollywood flippers but without the flippers.