Wanting some help with an intimidating Sacred Fist

[Aziraya Zhwan]

I'm going to be playing in a home game soon. I'm starting as a Sacred Fist Warpriest and then taking a dip into MoMS monk. The GM is allowing everyone to have a couple liberties during character creation. For me, he's allowing me to start with a Clockwork Prosthesis (awesome backstory stuff and helps a little with the cost of AoMF. Basically going for a "falcon punch" feel with the prosthetic arm) and is also allowing the AC bonuses of both classes to stack. I'm going to be using the Enforcer feat to make intimidate attempts and focus on doing nonlethal damage when possible. My main question is whether I should take a level dip in the Thug archetype to apply the Frightened condition. My build currently looks like this:

Human
Str: 15, Dex: 10, Con: 13, Int: 12, Wis: 18, Cha: 8

Lvl 1 (Sacred Fist): Enforcer, Pummeling Style (H)
Lvl 2 (MoMS): Pummeling Charge (Extra)
Lvl 3 (Warpriest): Dragon Style

Reasons I've built this way:

Extremely high Wis to make use of the double AC dip. We've been told there will be a good amount of guns (think around mid 1800s) so Touch AC was a high priority. Int isn't dumped because I hate 2+int skills. This setup gives me 4 skill ranks to cover some important skills. Speaking of skills, is Spellcraft important for this character? Con is always needed for a front-liner. Unfortunately this made me dump Charisma just a bit to get Strength at least halfway good enough and Intimidating Prowess practically negates this. Dex stayed at 10 because Wis is capable of all the heavy lifting for it. Power Attack isn't a "right away" priority since I need to focus on actually hitting to apply the debuff instead of straight damage. Please tell me if you think I should build starting points differently.

However, what about a level dip into Thug at third? Frightened can be extremely useful.

Pros:
-I get to frighten people fairly often.
-He's houseruling that all guns are simple martial weapons. So far I don't have any proficiency in "all simple weapons" so this will open up my character to being able to use that sweet Revolver for ranged attacks when needed without penalty.
-Extra sneak damage never hurt anybody (except the victim).
-Gives a huge boon to my skills

Cons:
-Delays my BAB even further. Unless I'm mistaken, three 3/4 BAB still equals 0 BAB.
-Later progression on spells/blessings and makes Fervor come in later.

Any suggestions on feats? I'm already looking at Horn of the Criosphinx and Intimidating Prowess, but what others should I get and when? Any help would be greatly appreciated.

[Undone]

Few things.
1) Double wis to AC has been ruled not to work. They had to errata several things to make this true but it's official now so it doesn't work.
2) Dragon style is actually not useful early on. You need combat style master before you can reliably use it. Take PA over it and take dragon style as your free 6th SF level style feat.
3) Sacred fist pummeling/dragon thrives on 18 strength scores. Without an 18 str you're going to be lacking damage. I recommend going STR: 16 DEX: 12 CON: 13 INT: 10 WIS: 14 CHA: 10 before racials if you absolutely will not dump a stat.
4) You're going to be MAD if you want to intimidate something. Cha is the typical dump stat.