Except for #4 you are looking pretty good. That one however is a crap shoot and can be anywhere though. Generally good people I find.
Pricing is all over the place and it depends on what you want. I find about $350K for .5 acre on big water. In a cove you are probably looking at about $150K?
I would go to www.zillow.com and take a look. You can filter out everything except for lots and there are an absolute ton to choose from. Keep in mind those are just asking prices.