Basically, a good boy's counterpart to the best possible LW topic. It should also include aircraft operated by British Army, so we're also to give them as good gear and doctrine as realistically possible.
Before we jump into bits and pieces that warm the rivet-counter's hart, a good look at doctrine, training, communication, cooperation and defence of assets is needed. Change the historical RAF/AM doctrine when/where needed.
Also - how much of assets to deploy in France before April/May 1940? What to deploy?
Realistic pieces of gear are encouraged (no jets, no cluster bombs etc), buy/licence from abroad if need.
Start date is January 1936, and we somehow know that war is imminent within 3-4 years.
Extra points for managing to save France in 1940, so we need to blunt both LW and Heer with air power - tall order indeed.