Good to hear you got your engine.
As for a glow plug I use OS plugs A3 and #8. I dont have any experience with Fox plugs.

If you want more specific information on proper breaking specifically for your engine; I would search around these forums or post a seperate post asking specifically about your engine and how to break it in. You should get plenty of feedback on the proper way to do this. For fuel I would say that a good 10% or 15% fuel would work well.

Good luck,
Ryan