Playing w/ 1:200 scale aircraft would require a hex mat with 3" hexes.
On a 5x8 table that translates roughly into a play area of 20 hexes by 32 hexes. If using any of the pre-written scenarios from the book, each square would be roughly 10 hexes by 11 hexes.
Plenty of space to play W.W. II aircraft that the fastest planes have a top speed of 5 hexes per turn. Even the jets usually are only moving at 6 or 7 hexes per turn. It would be tighter, but very playable area even for jets.
For 1:200 aircraft there are many places to get them. One dealer who regularly attends Cold Wars and Historicon sells a wide variety and rare (for example Italian MC200 and MC202) aircraft. They also sell stands for those aircraft. They make a very good product, but I couldn't find them on the web and don't remember their name.
Here is another source for 1:200 aircraft.
link
For decals, you can't find a better couple of guys or company than I-94 Enterprises. Link in below:
i-94enterprises.com
Hope this helps you get started. Check Your 6! is the best set of air combat rules out there in my view. A perfect combination of simple game play with enough historical fact.
I'm not a pilot, I just play one on the game table. Give me a set of rules that allow me to do that.
