John,
The eBay ones look like the smaller narrow version which are fine if you are a skinny teenager (lol) but they are not genuine Ford items.
I recently had a set of genuine seats, I removed the covers and washed them twice before reassembly.
I ended up selling them as they were so damn small!
You can buy wider sparco streefighter style seats like mine and easily recover them in leatherette for a fraction of the costs of those on eBay which as mentioned above are not genuine - the seat belt slots are the give away!
A friend has a set of black (wider) RS200 seats for sale if your interested, let me know.
http://4.bp.blogspot.com/-dQpfziqsyXQ/T ... 200-11.jpg
CheeRS
Mike