We've flown and camped quite a lot - both in pre-children days with a tiny backpacking tent, and since, with a family tent and a car hired from the airport.
Fuel is always a bit of a challenge!
We used to have trangia and take the translation for meths in the language of we were going to. The challenge of the smelly fuel bottle/stove will be the same for you ... and I think the attitudes of airports are considerably more strict now than when we travelled like this. I'm not sure I'd even risk it.
More recently, we have taken two tiny stoves like these Link
and tried to source gas cannisters there.
Our approach has been to look on the internet for Decathlon stores in Europe - these are pretty good for gas cylinders. Alternatively, search google maps for outdoor gear shops and then check their websites. You could even try sending an email to them in advance if you're worried.
Our backup plan has always been to buy a tiny, cheap stove with whatever fuel we could get hold of when we got there - but as we're often staying for 3-4 weeks and cooking most nights this isn't such an investment. It depends mostly on how much camping you think there is where you're going - if there are campers, then there will be camping supplies. If you're going to be the only people camping there, then it might be more difficult ...
Flat pack bbq sounds good, but a bit heavy in the luggage ...
It's always an adventure!