i wouls say go get the hot hoof express, just got mine last night. As a few have already stated it can be a pain to get a group for last part in diremaul,endless whispers etc, eventually got a group me and 2 other lvl62 locks plus a nice lvl70 warrior, breezed through and got the mount
side note my lock is called amrita on burning blade server(horde) if anyone needs a hand im willing to help as i have the final mats