If you are a CFI, your flight school should have a simulator that you can use for free. Just get another instructor to give you some vectors and fly some procedures. Interview gouges will give a run down on what to expect during your sim and you can basically flight a mock sim session. Thats what I'm doing for my interview on Thursday. I know what approaches and procedures to expect and a buddy of mine is going to run through it with me. And it's free. Just a thought.