Hello,
i'm an IT engineer, i worked with android/phonegap for 4 years. Also worked with libgdx, cocos2d, and javascript.
I checked the document, you attached in your post, and i can do it in the time you require, just database operations and SharedPreferences for the cache, plus the needed design.
The assets, the database, image, etc, i can make a dummy data structures so you can see it working.
If the price is to high for you, i'm open to a posible negotiation.
Just send me a mail, or pm anytime, i gladly asnwer your questions
Best regards