Find an instructor who has loads of Spitfire time, and pay them to teach you to fly THE spitfire. In the USA in Florida you can learn to fly the P51.
Roald Dhal recounts in his book "going solo" (biography of his war time fighter pilot role) about how he turned up to his new unit and found a hurricane (I think) waiting there for him. He had about less than 200 hrs at this point I seem to remember.
"Who's going to teach me to fly it" he asks his CO, "You are" he answers and gives him something like 6 hours to learn to fly it before sending him off from North Africa to Greece (I think) to join his combat unit.