As I understand it, his A-36 is currently being re-restored. When it came back from the Flying Legends show in Duxford, it was never reassembled, just stored till work could begin on it. I don't know how they are planning to refinish it. Personally, I'd like to see it in a war-era scheme (OD over Gray). Several A-36's based in Siciliy completed 200+ missions, one in particular had the mission marks starting at the nose and running all the way down the left side. Might be interesting to see full-scale.

Wind pressure on the dive brakes shouldn't be an issue. There is a rod that connects the top and bottom brake within the wing. As the top brake is is opened, it pushes the bottom brake open. The wind helps open the top brake, and pushes the bottom brake closed. Since they're linked together, the wind pressure on both brakes should cancel out leaving little load on the hydraulic cylinders driving them; or in the case of the model, the servo. The "Allison Mustangs Walkaround" book by Squadron Signals has a good diagram of this system.
I chose to make the brakes operational, because I like models that function the same as the full scale. If they prove to be problematic, or a maitenance issue (both likely) I simply won't deploy them. And this way, all the static pictures can show them open helping distinguish the model as an A-36, not a P-51A.