Tree of Savior Forum

Yet another Corsair

I know there have been enough threads on the synergy between Corsair & Fencer already, but the build I’m having in mind derives from the canon ones I’ve seen, so I figured I’d ask for advice.
I’m absolutely in love with the Corsair idea, so I really want one. C2 is undoubtedly good, while C3 doesn’t seem worth getting. Also I really love Barbarian, which is why I want to run C2 for it.
The thing is: I really don’t like Sw2, so I went Peltasta for rank 2. Can’t hurt being able to switch back to a shield in case I need some tanking in giant mobbing situations.
Most important question now is: Can this work out as I imagine it (dual wielding with sword + dagger or sword + shield in case of tanking), and what would be advisable to pick up for r7 for this build?
Should I just include Barb3 and go Corsair for r6 only? Can Fencer work out with this build? Is Doppel more advisable?
Any constructive input is welcome.