I would pass on that gun for 800. Why? Because the demand for that 66-5 is very poor and it being not a true 3 inch barrel, 3.25, I would not spend that much on that gun. Take your 800 and add a couple hundred more and buy a super nice 66-2, 66-3 or 66-4 3 inch model and you will never get hurt on your investment.
Eric