Reptilia(Saurien) Faction Creation

I'm working on creating a Reptilia faction and wanted to confirm that I have done it correctly. Is the below faction legal and correct? I've put my uncertainties and questions in parentheses within the list.

My goal is to create a Saurien faction with access to the primitive/common Armory (which they don't naturally have, correct?). I'd like to include some Ophidian Bloodline classes that also have access to the primitive/common Armory.

Saurian Bloodline 5pts: Reptilia Bloodline 3 - Saurien, Increase Willpower 1

-Learned Defense 6pts: Increase Defense 1

-Saurien Quickness 4pts: Increase Movement 1

-Primitive Saurien 2pts: Primitive Origins 1 - Annura

(I'm using Primitive Saurien to get access to the primitive/common Armory through the Annura trait Armory Knowledge (below) since there are no Saurien traits that give access to it. Primitive Origins 1 give Bonus Traits 1, but the bonus trait must be used on the Devolutionary branch within this lineage (Annura in this case). Bonus Traits 1 gives 1 additional trait, but it does not say that this additional trait is combined with the trait that provided Bonus Trait 1. They appear to be totally separate. So I'm assuming that the additional trait that I select will not be part of the Saurien Bloodline, rather it will be included as of my base faction traits. And, if that's true, then the additional trait will be available to classes that do not use the Saurien Bloodline. Is this correct?)

Saurian Lineage:

[Tier 1]

Expertise 2pts: Class Maximum Traits 1 - Class Level 1 and 2 Only, Faction/Species Trait Only

Superior Race 3pts: Class Maximum Traits 2 - Class Level 3+ Only, Faction/Species Trait Only

[Tier 2]

Superior Weapons (Armory): Advanced Melee Weapons 1 5pts

Annura Lineage:

[Tier 1]

{Accessed via Primitive Saurien} Armory Knowledge 0pts: Armory - Primitive and Common (Since this was "bought" using the Bonus Trait 1 ability from Primitive Saurien, does it count towards my 3-6 faction traits or is it in addition to those 3-6? The way I read it, since it's granted as a bonus, it's in addition to the 3-6.)

Tuatara Lineage: [Tier 1]

Discipline 2pts: Increase Discipline 2

Scales Armor (Armory): Medium Armor 10pts

If everything above is correct then I should have a base species that has +2 Discipline and has access to the primitive/common armory, advanced melee weapons (class levels 2+ only), and medium armor. Each class I create is also able to get extra traits for more customization. Additionally, if a class keeps the above Saurien Bloodline, it will have +1 Movement and +1 Defense. The base species should cost 7 points, and the Saurien Bloodline should cost 17 points. So, a base species Saurien warrior would be 24 points.

When creating a level 3 class, I multiply the Base Species cost of 7 by 4 to get 28 as the level 3 Base Species cost. Then I add the bloodline cost (17 points for this Saurien bloodline) to get 45 points. So my level 3 models cost 45 points + class traits + class options + wargear. Is this correct?

Where are my errors? Are there any? Have I misread or misinterpreted anything? Thanks for your help