center caps to suit " performance " brand 13X6 superlite wheels + also 1 - 13 X 6 rim

Hi all.
    title is pretty explanatory. I only really need 1 rim and 1 center cap  but will take 4 or more, depending what people have. Im after reasonably good ones though, I already have a few shoddy looking ones and am trying to make a good set.
       Cheers
      Shep