Sprinkler System part 1

Yeah, I'm freaken crazy.  I've decided I need a sprinkler system, and that I should install it myself :)  So I spent a few days researching and planning it out and have come up with a good design for the small and oddly shaped lawn I have to water.  I went ahead and purchased everything I'm gonna need...

Also marked off all the lines in pink string I need to dig up across the lawn...