[Wanted] Puma XS Drivers seat back

Hi there I know lots of you have spent fortunes on seat upgrades, I am looking for a puma black cloth seat back as mine is knackered after 150thou miles of me sat in it and I am getting horrendous back ache now.
Ebay are silly prices for take off pairs
Might have to go down the Exmoor trim route and get an upgrade seat back, but asking you lot first for ideas and anyone who has one going dusty in their garage

Lewis If everything is under control you are not going fast enough.

MY 16 Discovery 4 Commercial Workshop and Escort Vehicle
MY 12 Full Fat TDV8
1952 Series 1 80" 3ltr 6cyl