Is it possible to use the Google Play Store without having a mobile provider?
If all else fails.

So if you can't install apps from the google store. Then you can sideload them with adb.
The apk can be found in backup folders from apps like 'titanium backup' so you can have your friend install it and back it up. then copy the apk.

I had a Cricket phone that I didn't buy service for... and they disabled the app "Google Voice" This sideload method worked to bypass that.