"Don't the Red Arrows have the odd spare seat in between shows"
Doubt it mate but why dont you ask..........
There is another way although it'll take you a while, first you have to complete EFT, get streamed Tucano, get your wings, get streamed again, just in case they mucked it up the first time. Then you finally get to start flying the Hawk.
Total cost = a little bit of blood, plenty of sweat and a few tears.