For sale: Pentax 10-17mm F3.5-4.5 ED (IF)

For sale as I journey from 20+ years with Pentax to pastures new with Olympus, a Pentax 10-17mm F3.5-4.5 ED(IF) fisheye. In excellent condition with original box and front/end caps. Not often used but excellent results when brought out to play. Optics flawless, overall condition approaching as new. Looking for £200 to include postage to UK only please.