Write a Mobile ARPG Game

I would like to create an android Game, action RPG type (i.e. Diablo) with a new revolutionary concept which of course I will explain to the chosen developer. The Game is dungeon based single player, 3d isometric view, cash shop based. It needs to be able to share among players achievements and information about gear, stats etc.. I have lots of good ideas but I need somebody with specific experience on this to give some advise on how to profile correctly this project. Thanks,