Bride Seats?

Does anyone know where I can get a set of these seats?

I know what you mean, but none that I can find. only a few aftermarket Bucket seat sets of Sparcos and Recaros etc which seem to be resin copies of Tamiya Race seats.
I'm after a set of adjustable seats like these :
http://www.bride-jp.com/seat_r/brix_set_image.gif

The best looking seats IMO are the ones from the Tamiya R34 Skyline kit.
http://www.spc.org.uk/nissan/i/r34-sas-engine-008.jpg

Which with a bit of work could be made to look the same, and then cast from resin (I'll have a go soon)

You pretty much will have to scratch-build them (heavily modify some other seat). Here's an example by Subway (http://www.automotiveforums.com/vbulletin/showthread.php?t=91726)