That is an O K price if it is in very good condition. They are very nice guns. I would pay that for one in good condition.Condition is everything if the gun suits you. Try to get an extra mag or two. Maybe a holster.
exactly what deandog said. also it never hurts to ask for the box, mags, grips etc. sometimes you can score a decent holster as part of the deal too. 5943s are great guns by the way.