Yes it will be compatible.
The F-1 Firearms Durabolt 7.62 Bolt Carrier Group will work with .308Win. However, if your rifle is chambered in 7.62x51 it is generally recommended not to shoot .308 in that rifle.
Yes. The F-1 Firearms Durabolt 7.62 Bolt Carrier Group is compatible with your Aero M5 upper as it is designed for DPMS pattern upper receivers. It is also a good idea to check your head spacing once installing the BCG into your upper.
Yes, it will.
No, these are not drilled/tapped to receive a side charging handle.
Yes, it will work very well in an Aero Precision upper.
Yes, it will work very well in an Aero Precision upper with a 6.5 Creedmoor barrel.