Have you any idea of the prices (delivery prices, too)?
Anyway, I do not think they will be of any use for us, because of theyr "wrong" pins dimensions...
Still in search of the "full" ones!
A friend of mine cut off the piece of the seats with the holes and welded the one of a Lancia Y in place, so he managed to put Lancia Y headrest on his r4 seats.
I have a Lancia Y parked in my house's street, it is my sister's one, she is waiting to scrap it because of the engine blowed away.
I will keep the seats, maybe at last there is one solution...