Hubcap Interchangability?

[cortcomp]

I have a 66 c10 with factory wheels, with the repop oe style hubcaps. I'm considering making a trailer for the truck to pull something cool behind, and i'd like to make the wheels match. It's a 5 lug wheel trailer, i'm sure i could find a rim that's some kind of OE steel to fit the trailer.

My question is, has anyone tried these or OE hubcaps on steelies other than factory for our trucks and got them to fit? Has anyone done a 5 bolt conversion and then used wheels but still retained the OE hubcaps?

Hubcaps i'm using are same as in truck below. FWIW, if i recall correctly, my 66 rims are the "bump" type and not the clip type, but i can't be 100% because i haven't had the hubcaps off in over a year and i really don't remember.