C-3PO without Chirpa?

Hi there, 

Does anyone know is it (easily?) possible to avoid chirpa and get C-3PO to 7*? What are the consequences? 

In the past it was basically not something that was done, but with Kneesaa, has that changed the dynamics? 

I want to farm Arc, not Chirpa! 

Thank you for your help on this one. 

Andy