Rather than try to raise the money to achieve your vision, instead start as small as you can, develop some traction with paying customers and then grow your business into what you envision. Not only will you have a greater chance of successfully raising money, you will also get better terms since you are de-risking the concept and investors expect to be compensated for taking risks. Not to mention that you will become VERY resourceful!
For a step by step, easy to follow guide on exactly how to grow your concept into a profitable business, follow our step by step process at www.ideaessentials.com
Thanks and I wish you the best!