I still agree with you. The head separately would be a nice offering.As long as it's not one of the common TTO of course - but I understand your general assumption. Therefore I think it would be great if they sold it as a head only as they do the zamak.
That way you don't have to pay more for something you wont use.
A common setup is the R41 head paired with a bulldog handle.
So Mühle, if you´re reading this thread take our wishes into account! (you will increase your sales)