Aurora Store is not a separate app store but is an alternative front-end to the Google Play Store. Combined with microG it should be possible to get all the Google apps.

There must be a reason why Aurora Store is being advertised, though. Why would they do that if they could just pre-install Google Play Store and standard Google applications.

Update: End of 2018, I bought a Huawei phone with GApps. I remember that two or three generations later, Huawei was not allowed to include GApps anymore.