That seems like a great deal on the Aero upper, the VG6 goes for about $70 alone.That is a good deal, thanks for sharing.
I am very tempted but the Aero upper I bought from PA just arrived today, and while I do have other naked lowers I got to wait a while before dipping in the piggy bank.
I have put the those VG Epsilon SL brakes on my last two builds, they work well, look cool, and are a very good choice for a pinned muzzle devices situation as they are narrow enough to remove the gas block over it if needed (no need to drill out the pin and remove).