$250 would be an outstanding price. I haven't done an exhaustive search but my mechanic's source quoted "around $500 with exchange," sans labor, and the listing on AutoZone's Web site was approximately $500, less a $100+/- core charge (I don't recall the exact numbers).
I ordered from Meridian Auto Parts (
www.meridianautoparts.com) for $475, with a $125 refund for return of a good core, for a net cost of $350. No freight charge, with a return label for the core (negotiated).
I can't yet recommend their rack as I only ordered Monday and haven't received the goods, but I am running a reman AC compressor I got from a subsidiary of theirs a few months ago. (In fact, I ordered another compressor with the rack.) I ordered by phone and was impressed by the assertion that they rebuild the racks "to order" on the premises, and had one in stock. Will report back once it's on the road.
dcb