[Highland Park] Want to trade: trunk-mount bike rack for spare tire-mount bike rack

We have a standard Rhode Gear bike rack that mounts to the back of a car but we need one that attaches to a spare tire. The one we have was used for over ten years but is still highly functional; it's just of no use to us. We're hoping for a trade but will sell it for $25 or best offer. Thank you, Heather