A buddy of mine just transitioned from Marine Corps to the Navy. His contract was up and he resigned his active duty commission with the USMC. On our letter (USMC) you have to state if you want a commission in the reserve. He said yes to that and then started to work the transition from the Navy side. He was picked up on a Navy reserve pilot board with the squadron he wanted before he did all this. The Navy helped get him to the right Navy admin people to make the transition happen. The paperwork took about 4 months to route. However, it was during Thanksgiving and Christmas and New year holidays but I hear it still takes 3 months or so. I would recommend you get the Navy squadron to say yes we'll take you and then start working it from the AF side of the house. Good luck but I'm pretty sure it can be done.