If the GPE version is Dual-SIM as well, you can flash the official GPE ROM to get your Moto G a GPE-feel. Please note that this will void your warranty, so i wouldn't recommend it.
There's also the partitioning scheme, which I know that is different in the GPE version, but I don't know if that can break up your phone... So, it's up to you
About the networks, as far as I know if the device is factory unlocked, it will work in any network, someone please correct if I'm wrong.