Lol, this thread is like the world's slowest conversation. Approximately matches my time-averaged touring speed :-)

Thanks for the tips- I am going to go and have a fiddle with the fork and see if I can get it on. Absolutely pouring with rain here, so not much motivation to go out for a ride though...

Edit: Can I just use any old blocks with the cantilevers? Can anyone suggest a model that will definitely work?