Thanks guys. I was thinking about doing the spider caps like this:
But the wheels are dual pattern, and the second set of stud holes left exposed would drive me nuts ...
Not sure about my tire selection though. The size should be very close to the diameter of the original bias ply rubber, but they seem very tight in the front wheel openings. I'm thinking that 215/65R15 might have been better. Oh well, I can address that when I decide on the new wheels for next year. I don't mind the chrome smoothies with the new caps, but they do have some surface rust on them that doesn't show up in the photos. I still have to try taking an SOS pad to them to see if that helps.