They seem to be all over Ebay. They "look" tidy enough in the piccies, and appear to have real hide as well as fabric options (not vinyl). If I was building a competition car I would consider them, but for a road car, especially modding something older or cheaper and sticking more supportive seats in for looks an comfort, I wonder if they might do the job.
I know the other option is a set of second hand OEM recaros from maybe a Scooby for a modern car, or from an Astra/Manta GTe or capri for an older car.
I know quality wise the oem recarros will be better, but may still cost more but both will require subframe butchery to fit in a different car anyway.
Not saying I'm buying seats ATM, but just thinking, how good quality would they be for the price they are offered at?