The cheapest models will cost you about 1700 bucks for the whole set up plus the cost of installation if you don't do it yourself. You can pay all the way up to close to 4 to 5 grand for some of the more sophisticated models, but that's not necessary for your size boat. Raytheon has the cheapest to some of the most expensive auto pilots around. You can check out their website if you want to look at the various models. There are many choices through various companies. Check out Boe marine, Hodges marine and the GPS store for various models and prices. It would best to talk to someone there for your specific needs. There are also a lot of guys here with full knowledge on what you might be looking for and what might work best for you. Good luck with your search. I'm looking to put a new one on my boat this year too.