We would like to add a Jandy aqualink to our pool. The markup by the pool companies/installers in my area are high, therefore I would like to purchase the necessary equipment and then pay someone to install it. Everyone recommends the AquaLink RS OneTouch Pool & Spa System since it is not preiwred etc. For this system, could someone tell me all the major equipment I need to purchase to have someone install it. Thanks so much.