Those are most likely 08/09 versions. I say that b/c I don't think distortions were around before that, and the date is prob the manufacture date. Brand new complete I'd say up to $100 is pretty damn reasonable. Those were like $250 retail when current.
15 NS Ripsaw . 14 NS Proto HD . 14 NS Cobra . 13 Gnu Space Case EC2 . 2013 Salomon Pow Snake
14 Now Drive . 13 Now IPO
14 Flow Hylite