After a little time to let the paint dry, the pipe was fitted to the engine and covers put on. Couldnt tell it had ever broken.
It was well worth doing the fix, as a new pipe from Ebay was 121 beer tickets, and from Mazda /Ford probably closer to 200.
Total time for the fix was about 1.5 hours, including the time to get the pipe back in. Its fun sticking a pipe into a hidden hole down inside the engine bay where you you cant see it and getting it back past the exhaust and turbo. A bit of Vaseline certainly made it easier to slide back in. Its also nice to have expensive tools handy to do repairs.
That reminds me, I'm going to have to go to Total Tools to gett a new tank of CO2 welding gas soon.