Any ballpark guesses what four Superior bullet lenses are worth? (and does anyone need them?) The woman I bought my 68 Superior from has 4 for sale, but she wants $400 for them and won't sell just one - I just wanted one for a spare. Does the price sound right for just the lenses and the thin trim ring that holds them in place? Anyone interested in the other 3 at that price, or is it way too much?