Android Emulator Automatization

Hey guys, this job is about automating an android emulator such as "AndY" ([login to view URL]) so that it automatically logs into predefined gmail accounts and does automatically rate apps in Google Play that I predefine as well. So what I want to do is I want to feed the software with gmail accounts (username and password), give apps to rate, define the rating (3, 4 or 5 stars) and the rating text and maybe some more settings such as the time between one rating and another etc. When I set up al those things the software starts working and rates one or two apps (or how many I setup) with each of the gmail accounts that I deposed. I dont care in which language you use, I dont care how you do it at all, what counts is that I have a working tool in my hands once it´s finished. Project budget is 400 USD. Not more, and not less.