I have a bid for my 6500sq ft yard to be irrigated with 5 zones, approximetly 30-33 heads. Installer said he will be using a Rainbird controller with Hunter heads. The quote was $105 per head, which included installation of back flow and everything. Any opinions would help. Im in auto sales, so I am not looking for something for nothing and want to make sure guy gets paid for the work, but I have no clue where this quote stands. Thanks.