It's not an ideal set-up, but with the foil heat shield in the frying pan to act as padding and the Trangia strap around it, it seems to hold together quite well.
I do like the xmug. Mine has a crack in the lip, but so far it hasn't widened, and I'm happy to keep using it. It does have a slight aftertaste which I haven't managed to shift, but it's simply a morning caffeine delivery system, so I'll stick with it for the mo'.
Fire - I'm still on the fags and haven't quit (yet), so I always have alternative means of sparking a flame. I'd usually chuck my Zippo in there, as that creates enough of a spark, even without fuel in the lighter, to ignite the stove.