Is the regurgitonic quest working as intended?

[Tecmos Deception]

There is often someone killing corrupt guards or the barbarians nearby that you could probably ask to kill frostbite for you, if all else fails. They likely won't care about the faction, and it will only take a moment of their time.

[Grimmway]

It is working. Have a caster cast Identify on you as you hold the Regurgitonic. It will identify as the good or bad one. I got lucky on my second try.

The faction for Kimble Nogflop should be Gem Choppers as he directs you to do quests to raise your Gemchoppers faction. I maxed Gem Choppers and King Ak'Anon and he still wouldn't give me the Regurgitonic. (That was a a lot of Minotaurs. A lot.)

It seems he is on Merchants of Ak'Anon. After a few dozen Vasty Deep Ales to Shondo Billin in Erudin Palace and my Merchants of Ak'Anon faction was no longer apprehensive. He gave the Regurgitonic over without complaint.