The overall idea of the cycle is looking good, but you need to make some changes. First of all, I would strongly recommend using aromasin instead of arimidex. It is a much better AI in each and every single regard. Arimidex will increase the levels of bad cholesterol, whilst aromasin will do the contrary. Besides, aromasin is a suicide AI, so there will be no estrogen rebound with it, whilst this female hormone can bounce back after stopping the use of arimidex. Finally, aromasin will increase IGF-1 levels by up to 25%, which will be extremely beneficial for muscle growth. All in all, aromasin is a better choice - use it at 10 mgs EOD, and you will be just fine.
As for the PCT, it is extremely weak - it needs to be more comprehensive. Remember - the better the PCT, the more gains you will be able to keep after ending the cycle, and the easier time you will have while recovering. So never cut corners on PCT, as it will basically make the cycle useless.