I have a set of H2 chrome caps for the 08 H2 alloys if anyone needs some. They are chrome and have the gunmetal "Hummer" tabs. I'll let them go cheap.....

 

West System epoxy might be a good way to fill the name in. Try to sand the grooves to give something for the epoxy to grab into, let it harden up and start sanding....

What dimension did they machine the center out to. I'm waiting to hear from a shop that might do mine big enough to run a push through center cap.

 

I had mine machined out to 4.774"