Steal/pickpocket chance, any way to affect it's proficiency with perks?

I want to either create a mod for a perk that affects your pickpocketing chance in a positive way or ask if someone could create it for me.

I have tweaked perks before but I have no idea if pickpocketing chance 'can' be affected by perks, would I need to script it for a perk?

I've wanted to create characters that are good at stealing stuff without being masters at stealth so creating a perk could satisfy my needs.

(I figured it would fit in GECK more than Mods but if it's the wrong forum feel free to move it to the mods section)

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Now in case someone could create this for me instead of me having to create it (as I don't know how to) here's the things I'd like to see:

Trait: Nimble Fingers

Requirement: Agility 6>

"You have nimble fingers though not as nimble feet, you have +20% chance at pickpocketing someone but -15% chance at stealth"

Perk: Thief (3 ranks)

Requirement: Agility 5 LVL 3

"You're quick as a cat, with your hands... Don't think too much about that. Each rank gives you a +15% chance at pickpocketing."

Perk: Finger Artisan

Requirement: Agility 7 LVL 21

"You can work magic with your fingers! Well, not spells, this isn't a fantasy game. Oops! Broke the fourth wall.. Eh.. Disregard that last part, here's what you get: +10% Equipment Speed, +10% Reload Speed and +10% pickpocketing chance."

(Why level 3 and level 21? Cause I use a 1:3 perk ratio system rather than the default 1:2, you could always create 2 versions of the mod, one with 1:2 and one with 1:3, though if not then please tell me what the perks are called so I can open the mod in Geck and edit them myself.)

(As to why no "Sneak"? Cause Sneak already affects the pickpocketing chance and I won't always create characters that use Sneak but might be thiefs anyway, that's why there is no Sneak requirement, besides, how good you are at moving quietly really have nothing to do with how good you are at knicking some guys rattling caps. But again, if whoever does end up creating this mod decides to have Sneak as a requirement please tell me what the perk ID's are so I can tweak it out myself.)