Hunter would it be possible to decrease the time for the npc's to respawn after killing, perhaps put them on a 30 minute respawn?
I think they are on an hour timer and if someone is doing the quest you have no way of knowing when the npc will respawn again unless you sit and wait in the zone for a repop. Or go to the next boss only to find it is down as well and so on and so forth. It's already an enormus time sink just to do the quest with full pop's
Also can you make the instance cost on par with LDoN?
You could just send a tell to the other guy and suggest that you team up, since a raid force will all get the reward. Only problem is, you'll get no benefits if you do the full run faster than 1h, since you'll end up waiting for repops.
Personally fancying the idea of adding a chance of the mobs dropping complete rank1 scepter with like a 5% chance or something; it'd make it slightly faster for one of your toons, and break the monotony a bit when you get the sparkle of joy in seeing one on the loot table. =p