Question Regarding Halvung Keys

[Minions]

I have found the T-VT trolls after some searching (only a few... and apprently only a couple have a chance to drop as other have been dropping brass keys), But I have yet to see a moblin in here for the Shakudo Key. Does anyone know the location of these moblins, and where a good place is to farm this key? There is a pretty big lack of information in regards to where to get these keys in halvung.

[Lordwafik]

On the way to fighting Achamoth there's a moblin

[Dammerung]

Check otherwiki for the moblin billionaires.