I'd second Dave's advice.
Do you know about motorcyclesuperstore and their free shipping when you spend $90 or more? They have the Dunlop K70s - http://motorcycle.motorcycle-superst...m/search#w=k70
. That's $155 for the pair, delivered (plus strips and tubes, of course). I think Snakeoil recently referenced a good sale at BikeBandit, too. That would be worth checking.
Plus - have you ever had to struggle with mounting and unmounting tires with old and stiff sidewalls? Avoiding that would alone be worth some money in my mind.