Carbon Fibre Seats

hope this is ok thorney-not advertising for financial gain, but i think my bruv can get harness ready carbon fibre seats at trade price if anyone is interested. weight without cushion is a couple of kg's and price is about £300 and the grp jobs are about £150 but don't know how heavy cheers d

hope this is ok thorney-not advertising for financial gain, but i think my bruv can get harness ready carbon fibre seats at trade price if anyone is interested.
weight without cushion is a couple of kg's and price is about £300 and the grp jobs are about £150 but don't know how heavy
cheers
d

Just a few questions :

Who is the manufacturer?

Are they FIA approved?

Do they really fit within the confines of the VX?

How are they mounted - can the existing stucture be used or is a separate subframe necessary?

If new subframe required, is that included in the price?

Is installing and removing fairly painless, so that for road use standard seat can quickly be put back?

Are they the same for driver and passenger? Asking as have LHD Speedster.

What are the cushions covered with?

Colour options?

Piccies?

cheers