I've searched and searched for the material for the Gold LS seats - I heard some years ago Minisport in SA got their hands on a final reel of the material, which was subsequently sold off, explaining why a few LS's with this trim managed to be re-trimmed properly within the last decade.
I had to get my Nugget Gold 1275LS seats re-done with another fabric (kept the same colour but couldnt find the same corduroy like texture anywhere). That ended up being done at Sydney Motor Trimmers.
Will certainly keep an eye out for the material, but it seems to be long gone. They are the most comfortable of all the stock Mini seats I find

. Worth preserving and using if you can..