Prices vary by location, condition etc,NADA is usually an average of dealer pricing and sales and sometimes comes from different realities.I can't offer much price info but when I was looking there was enough overlap in prices that I was able to buy a Marlin that seems to suit my needs better altho I can't say why or how.Hmmmmm....anyway another place you might find some pricing info is closed deals on ebay.
Wherever and whatever you buy spend the extra and get a good survey,some surveyors will be able to give you a price range on a particular type of boat.
Good luck!