...Two new valves and seats. I was able to use the existing valves and cut them dowm from 14mm dia. to 11mm dia. I couldn't resist keeping the inlet valves bigger, so they're only 1mm bigger than the exhaust.
Smaller inlet valves and new seats
Sorry about the poor quality of the photo, it was taken under poor lighting conditions with my iPhone.
Next is assembly and test. This will probably take place at the weekend.