Here are the few I can think of to add to those:
Replace your mundane mwk tools with Amazing Tools of Manufacture to boost the +2 circumstance to +4.
The Prodigy feat will give you +2/+4 to any two (Craft, Perform, Profession) skills.
Your list of traits includes Perfect Calm, right? It's easy to miss since it's not a straight bonus to Craft.
Fuzzy, You mean patient calm? No, I didn't. I had other things I needed from them =/
Whoops! Yes, that's what I meant.
Aid another bonuses can get really high depending on how that person built.
Getting a spellcraft DC high enough to easily craft is almost trivial, especially if you're INT-based. It's the time it takes to craft that matters. The valet archetype of familiar allows for cooperative crafting. I'd be interested in any other time savers (in addition to doubling crafting speed for a penalty to DC).
To elaborate, Cooperative Crafting gives a +2 circumstance bonus to crafting, and the valet familiar has the same crafting skill rank and item creation feats as your character. Remember that circumstance bonuses from different sources stack.
A successful Aid Another skill check from another character gives a +2 typeless bonus.
What I like about Cooperative Crafting from a valet familiar and Aid Another is that they apply to all Craft subcategories.
The Heroism spell gives a +2 morale bonus to all skill checks. However, Heroism lasts only 10 minutes per level and as the GM I ruled that the crafter must have Heroism active for all the crafting time in order to gain that bonus on the Craft skill check. That led to 3-hour 20-minute crafting days for the tough projects conducted by my 10th-level bloodrager GMPC. The rest of the day was Aiding others on their projects.
My Iron Gods party is 11th level, short on cash, yet everyone has adamantine weapons and many have exotic armor that the party made themselves. Crafting became a theme for that party.
Diachronos, that *only* applies to magical arms and armor, not mundane, but still useful to know.The wording's kind of ambiguous, and could be taken either way. Is there an errata/FAQ for it?
No errata, yet.
Master Smith (Ex): A soul forger adds his magus class level on Craft checks to manufacture armor, shields, and weapons. This bonus applies on skill checks required when using Craft Magic Arms and Armor.
At 7th level, a soul forger uses the 1/10 gp value of armor, shields, and weapons to determine how much time it takes to craft mundane items, and he requires only half the normal amount of time to enchant magical arms and armor. This ability replaces knowledge pool.
The grammar is ambiguous, because the phrase "This bonus" in the second sentence could either mean a bonus equal to the magus's class level or the bonus on Craft checks to manufacture armor, shields, and weapons. However, the skill check, either Spellcraft or Craft, to use Craft Magic Arms and Armor is for enchanting armor, shields, or weapons, not manufacturing them, so the second meaning does not match the verbs in the two sentences. Thus, the ambiguity is resolved.
The two sentences give two bonuses: a bonus to manufacture armor, shields, and weapons and a bonus of the same magnitude to enchant armor, shields, and weapons.
The rulebooks often use short phrases, such as "This bonus", to save space. However, here a shorter wording would have been more clear: "A soul forger adds his magus class level on Craft and Spellcraft checks to manufacture and to enchant armor, shields, and weapons."
While Heroism is nice, Tears to Wine is much much better.
... gaining a +2 enhancement bonus on all Intelligence- and Wisdom-based skill checks. This increases to a +5 bonus at caster level 9th, and to +10 (the maximum) at caster level 15th.
Craft is Int based.
Great part is that I calculate you get skill bonuses to ~60 people/2 levels.
Get a wand CL2 of it for 1,500 gp, CL9 for 6,750 gp or CL15 for 11,250 gp. [A wand CL1 produces nothing.]
/cevah
Anyone mention the fabricate spell?
Amazing Tools of Manufacture are +4 circumstance and under the standard craft system speed you up a great deal too; not sure how that'd interact with the alternate one.
Oh yeah the magnum opus story feat which gives a +5 as well as let's your take tens count as 15 (one specific craft skill). That's a good one.
Edit: check out traits and don't forget the class skill bonus.
Remember that the Skill Focus bonus increases when you have enough ranks in the skill.