I picked up the seats from Off Road Engineering. They have an eBay web store. I paid the "Buy It Now" price of $580 for the pair. That may seem high but other sites on the Internet list the seats with the optional head rests for $500 each and they were not far away so the shipping was reasonable. They had at least one more pair with headrests when I ordered mine.
BTW the Beard web site (
www.redart.com) does not show the Rhino seats with head rests but they are available as an option.
I'm just under 6' tall. With the seat sitting on the seat frame it felt slightly lower than the stock drivers seat. I have the later "improved" cushion on the driver's seat which is thicker than the original cushion on the passenger side. I think it may be possible to mount the Rhino seats on bars tacked under the frame tubing which would lower them about a 1/2". It may also be possible to mount them directly to the metal panel on the driver's seat base. To get a proper fit it will be necessary to cut off the bracket where the seat back hinges.
One negative point is that the seat cushion on the Rhino seats is about an inch shorter than the stock seat which may feel too short to some people.