Just so you are aware there appear to be at least 3 versions and it seems you need to get the right one or it wont work ... of course this is not the cheap unit you are searching for... http://www.amazon.com/amazing-zone®-Microsoft-Surface-Digitizer-Replacement/dp/B00RYE7UR6
Link is to V0.5 version, the text references part number for v0.1 and v0.3 (assuming skipped 2 & 4 ).
Suitable for Microsoft Surface Pro 3 (V0.5 version only) bought wrongly returns will charge 40USD restocking fee
Please search B00WBJ1NCM for V0.1 version & B00WBJ2NYE for V0.3 version