I've done a couple of successful rerootings, but my location and the lenght of process actually discourages me in taking commission ^_^'''
If you want to try by yourself, you can try in addition to DollieKim method the one in this tutorial:
http://www.wideeyedgirls.com/rerootinstruction.htmlFor my personal experience, rerooting is less difficult that it seems, you only need an appropriate needle and large amounts of time and patience. But surely find someone to make it for you is more practical XD