Yaker, I would suggest you get in touch with Brian@BBGMarine .... tell him what you're looking for the unit to be able to do, size of screen that will fit your needs, your bottom line budget, and see which units he suggests would fill the bill. If you call, make sure and tell him you're a member here, and recommended thru the site. I haven't done business with him, but all I've seen posted are good reviews on his prices, service, and fast shipping times.