John, it's worth looking at the DT Modified Road Car catalogue, as it has reclining bucket seats. No matter what, you get, you will require new vehicle specific runners or fixed mounting rails. The downside to fitting fixed buckets with rails is that you can't modify the position for longer trips. Also, I've been on DT website, and it isn't as comprehensive as either of their catalogues (the new 2009 Motorsport one is just out by the way).
Seats are always priced individually BTW, excluding VAT and carriage.
The best place to try seats is to go to the Autosport show, where virtually every style of seat is on show from all the manufacturer's.
Hope this helps