Hello,
I am currently an Independent Android/Java Developer. I prefer to do games, but can do non-games as well. After looking at your project requirements, I feel that it would be a fairly easy game to create. I am experienced in Java and the Android Platform. I currently have one of my games published, and is available for free on the Google Play Market, if you wish to check it out for a reference. It is called Awkward Animals, and is free to install. Awkward Animals, includes an In-game store, Multiple Different Characters/ Backgrounds that the player can buy with coins collected from game and also had World-Wide-Leaderboards and Facebook Integration as well. I am currently finishing up the Mutiplayer, so by next week it will support friends playing against each other from inside their own homes. I used Google-Play-Game-Services to achieve the Multiplayer experience, so I also know how to use that as well.
If you are interested in working with me please contact me at email my email listed in profile