Well if answer to all the above question is Yes, then this gig is for you.
I will integrate Google In App Purchase with your Android App which will help you to generate money out of it. Users will buy IAP and then you will get that money.
If you want to build complete native app along with backend connectivity or you want to integrate Google Analytics/ Google Admob into your app or If you want me to turn your website into an Android app ready to be published, then please take a look at my other gig.
If you want me to publish your app on Play Store, then have a look at the Gig extra.
If you want me to provide full source code. Then please take a look at Gig Extra