This is a product that has proven time and time again to be a consistent seller. If you're looking for a nice fun project to build, and one that you can build regularily, this is the one for you. 
 
Here I run you through step by step of the build process with detailed 3D  dimensions and renders. You'll have no problem following these plans, catered for a 'one off' build, or for a batch of 5.