I'm definitely interested.

As a person who's actively played Arkham Horror I can definitely attest to the outstanding difficulty. It's worse than Elder Sign and I've only ever won against Yig. ;( Nyarlathotep is the harder. ANYWAY, I'm definitely definitely on board.

As a warning, though, never play Arkham Horror with drunk friends. Teaching it is a challenge in itself; teaching it to inebriated people is an impossibility. ;-;