I remapped the ledge room which is actually called "Jum-Jum Refinery". I mapped the lowerroom and then the ledge/upper part:
lowerroom.txt
ledge.txt
here is an image of it:
I also remapped the big square room:
bigroom.txt
the room has a dropdown from east to west at the red line I indicated, its not too steep all the way, you can get back up some places:
There is a tap which updates "By Hook or By..." Heritage quest at loc +350 +20 +110 (just west of dropdown):
http://eq2.ogaming.com/db/quests/ByHookorBy....php
After seeing Rukir you need to go back to Queen room for another update in "By Hook or By...". It updates just by moving into queen room.