So I created a phone game and, well, I am too dumb to actually make it work on a phone. I failed to build it in PhoneGap, Monaca AND Android Studio, and I give up.
What exactly is your problem?
To sign an apk is not so difficult because this is done by Phonegap as well as by Cocoon in the build process. You have to give a key that you create yourself on your computer.
If you describe more in detail I can explain. We just set up the whole process for our app from Construct 2 -> Export to Cordova -> Build in Cocoon/Phonegap -> Publish on Google Play Console (internal, for testing).
On the way we had some issues, but in the end it works fine.
We also do not want to subscribe to C3 ;)