These are the ones you're after;
AFAIK you cant get them direct from Enkei, but they can be had if you look in the right placeThey are indeed, but probably rare as hens teeth, so settle for even blank ones that I can put Enkei stickers on.
Thanks for the info, the blank ones in the link above may suit them in that case.Here are the dimensions of the caps you need;
Diameter is 59mm (i.e. 2r)
Diameter to include the recess in the feet ia 56mm
Depth of Badge part is 5mm
Depth to include feet is 13mm
Had a spare set but theyre now sold