Friendly Grim Dark's page

Here is the situation: I am the only PC that has argued to handle a group of slightly aggressive and belligerent kobolds diplomatically. We spoke and then agreed to leave without incident and return later, though they had their spears readied the whole time. So when we return later, since they are expecting us and they are expecting to have a conversation, though will likely have readied weapons, they shouldn’t be expecting the only peace seeking PC to reveal a concealed pistol and fire point blank in a kobold’s face being the first to attack. Two questions: 1) are the mechanics for this cinematic attempt sleight of hand to conceal the drawn pistol in the fold of my cloak or behind my hat, followed by bluff to attempt to approach and converse, and then simply roll attack as a surprise action?
2) is this something I should ask my GM before the session? Or keep the surprise for his entertainment value? I think he would enjoy the maneuver as well as enjoy stabbing me with spears after the maneuver with the other kobolds.

Thanks!

Favored Class: Inquisitor
So. I have a build that is becoming more and more clear. Inspired by Vader and Tywin Lanister and many other dark siders. Designed for a dark playthrough of Kingmaker. Aiming for the leadership role of Treasurer so I can rule from the shadows of the Inquisition AND the Iron Bank. I want the power of Law and Coin on my side. And I want to play as somewhat of a Shadow-Face. My RL brother is my Tiefling PC brother, he's a magus, and we have two allies for certain, two more potential, on a 12 PC roster (so I don't have to do ALL the damage with a magus, an assasin, and a fighter at my side). I LOVE the Inquisitor class and it is a must. I am very attracted to the roleplay and to the potential of a Jack-of-all-trades class as well as the social skills. Damage seems decent enough. To channel Vader, I've chosen to go with firearms (Light saber is rare and hard to use, as are firearms in Pathfinder). Relying on a rapier and spells to make firearms viable is what I'm attempting to build.
My level dipping map so far:
Inquisitor Friendly, of the Torture Inquisition (Urban Infiltrator)
Swashbuckler Musketeer, one level
Trench Fighter, 3 levels
Inquisitor as my remaining levels.

So, my question so far, though I have MANY, do I simply go
L1 >Inquisitor
L2 >Swashbuckler Musketeer
L3-5 >Trench Fighter
L6-PC death >Inquisitor
?
That build gets me Dex to Damage for firearms and rapier, and then gets me back on track as an Inquisitor at L6. Should I look into Variant to attempt this?
Thanks! Super excited about this character.