Depends on the condition too, which you didn't state. For a bit of a comparison...a few years ago, I saw a set of four of the styled steel wheels for sale at Carlisle. Perfect shape, still had the stickers on the outside of the rim, they had never been mounted. The seller was only asking $490 for the full set, with the center caps. I didn't think that was too bad of a deal at all. I gladly would've paid that for them if I hadn't already had my aluminum 5-slots on my Ghia.

You could throw them up on eBay and see if they'll take in any bids on a week-long auction (for instance). Start the bidding at, oh, $100 if they're decent and see where they go.

Are you on any Mustang II mailing lists?