GT- Anton?
Seems to be a bit of confusion here.
First pic is a MK2 S or Mini K upholstery..
Second pic is a 997 or maybe 998 Cooper but the body colour seems to be from a 997 Cooper.
Third pic is a late Mini Deluxe or MK 1.5 Cooper S. This upholstery pattern dates from around the time the wiper panel was changed in early 68 for the Lucas OZ wiper mechanism.
The first type Mini Deluxe/MK 1 Cooper S upholstery was the same pattern as the 997/998 Cooper. The door trims were the same as 64cooper's pic. This was used from 65 to late 67 early 68 when it was changed to the second type.
My first S a 66 build had the Westminster/Office type carpet but I'm told the really early ones had the same flecked carpet as the 997/998 Coopers.
The Westminster carpet is basically an office carpet and is very similar to the Tretford carpet which is available from a place in Queensland. Do a Google for Tretford. The Tretford carpet is reported by others to be a bit thicker but is as close as you will get today unless you can find some NOS.
The MK 2 S used a loop pile style of carpet and the Clubman GT used the same or similar carpet.
Edit re the door cards: There is no stiching on the door cards just a heat embossed line either in the early rectangular style or the later multi line style. Also the MK 2/ Mini K upholstery material is different to the MK1/ Mini Deluxe. The MK 2 type has a coarser grain.
Hope my ramblings help
RonR