Does anyone know if I can get a Samurai Class HAK anywhere to be able to put into my campaigns? I am looking for the class itself-rules, level advancement etc. Thank you in advance for any help here.
You may have to use a slighter older version if you're looking for compatibility with CEP. A number of people have made custom merged files combining PRC/CEP and uploaded those to the vault. Do a search under haks for PRC and you'll get a whole list of the options available.
Note: when creating nonstandard class PCs with modified haks and tlks, you do need to take care. Generally, when creating a new PC, you have to chose premade character, then create new one from that screen or you'll likely crash your game. Given the size of the PRC community, they may have come up with some other workarounds though.
I've never used PRC myself, so not up on all the ends and outs of it.