The wiki link says that the Flaxen Lock of Hair drops from chief rok'gus in Frontier Mountain, which is not in sync with this server's time line.
The first posting in the Allakhazam link for the item you need is from 2004, well after the stated time line for the server.
Lucy Item Database indicates that the item was added March 8, 2003, also well after the stated time line for the server.
http://lucy.allakhazam.com/itemhistory.html?id=12888
Sounds like 7th rank might be the end point for this quest line at least as far as this server goes.
Same issue apply to the monk bracer, shaman cudgel, warrior pike, and shadow knight sword quest lines, these quests/items were broken or incomplete at the time of Kunark/Velious and were not corrected/completed until after Luclin/PoP. Chances of them ever being completed or corrected within the server's stated timeline are slim imo.