http://www.popsci.com/popsci/how20/ddb6bb1fd9ca4110vgnvcm1000004eec... could use this to make some cheap GPS units. What do you guys think?

I am new to this site and I would wish to know what materials I need, software, hardware, stores, tools, and instructions require to build a UAV. Step by step directions would be the biggest help cause I find the UAV (or drones) on the main page…