sabotagge

Hi I have a question concerning Defiance Bay factions. I read that each faction grant you access to special traders(I would assume that each sells different items)I tried google and the search function here but was unable to find any information about these items. Is there any faction that I should take bases on what items I want or my party composition? BTW my PC is a barbarian

Estocs if you want DR on your weapon or a pike something like Tall Grass will give you both reach and DR. 2h weapon style + vulnerable attack Just starting with PoE and I'm going with 2h carnage barbarian as my PC should I take Weapon Focus talents?(Since pike and estoc are in 2 different groups and I may want to change weapons on different places/enemies is going to be hard to get the benefits of picking one all the time)