Hi Suz27
I have a B hub including axle, spacers etc in a pair of C forks. It all fitted perfectly and works well.
I didn't have a set of B forks when I built my B so I used what I had on hand and that was C forks, although if I had a set of B forks, and to try to keep it more standard looking, I'd probably fit them.
Did you end up getting the C / C2 forks you were chasing?
Peter