[Help Request] My Corsair C3 build

Hello friends, I am making a C3 corsair for the explicit purpose of farming rare monster parts for 315 orange weapon recipes (Plunder). My current build is as follows: Swordsman C2 > Barbarian C2 > Corsair C3. What is the best class I could add on for maximized mob-farming potential? DragoonC1 looks like it could be really nice, and I also had my eyes on fencer. What do all of you think I should cap off my build with?