I've only just got around to doing this pre-expansion quest stuff and noticed the first quest in Icecrown isn't working.
I've only looked Alliance side but, having looked up the quest on Wowhead I see Horde has a similar quest, so I suspect they'll have the same problem.

A Valiant Effort is the quest, Crusader's Dressing is the item.

I looked up how to get the zone id, /dump C_Map.GetBestMapForUnit("player") and it returns 118.
Looking up Zone Ids that matches, although there is another listing in there as 1400.
I don't know if there's a sub-zone or a specific phasing needed but a bit of reading indicates that someone has written a library because the game returns the same map id even if you're in a sub-zone.

I tried adding [183797] = 118, to quests.lua but it didn't help.
I also adjusted the settings you've added to try and work out if any of them help, they didn't. 😢

If there's anything I can help with please let me know.

I modified my local copy with your changes but it still isn't working on an alt I've only just taken out there.

This used to work, nearly, flawlessly. I guess Blizzard changed something which has thrown spanners at you. 😢