Hello! I am a web developer. I have worked in similar project before , you can see in my profile. Here is the deal. If you award me the project , i'll do all the work in Google end, get the codes. I can also help you set up the codes. Once you get email approval from Google you make the milestone payment. No payment needed beforehand , no milestone.
They usually take less than 3days to give the approval, I am playing safe with 4. Don't want to cross deadline.
Looking forward to the job.
Thanks!