Errr, the Rolls Spitfire that had the incident recently was the MK 19 and I think they put the spare prop on it, but yes the blades are I believe made by Hoffman in Germany.
The MK 14 rebuild was suspended and put into storage when the MK 19 needed it's rebuild a couple of years back. That's was not related to the incident it had.
I think you will find the Mk 1's are accurate, yes there were no original airworthy props available, so several props were manufactured to the original drawings, a major undertaking and not cheap. They now have 4 mk 1's flying in the UK and 2 for sale if you are feeling flush.
http://www.markonepartners.co.uk/spitfire-i
Ian BB if you look at the cockpit position, that is the two seater T9 at Duxford, not a mk1
See
http://duxfordfotogallery.co.uk/spitfire-t9/4549225053
..