If you choose to order a system you should try:
http://www.skiertoskier.com/ they had the best prices when I was shopping. You may need a discount code of some sort though. For your boat you definitely need the mechanical system, not "drive by wire". Fairly straight forward install. I have the Stargazer Wake Edition on my boat and I have been very happy with it. Probably the best upgrade you can do. Good luck.