I sell them as a set which will do one truck (4 brackets total). All four brackets are different and all computer stamped perfectly after the originals. 235 includes shipping.
If you prefer, you can buy them on eBay at:
Ford F100 Seat Brackets for Mustang Seats Ranger Custom - eBay (item 200539704818 end time Dec-04-10 15:38:43 PST)
Same brackets and it's still me, but the price is 250 to cover the eBay costs. There are a bunch of pics on there to look at. If you want some, I will accept Paypal or Money orders from the post office. My Paypal address is bluestang65 at gmail.com. If you send a payment, include a shipping address and send me a message letting me know you sent it. Thanks!