Yeah, Predator and Lonewolf are way too redundant with his innate ability, so skip those. I'll probably work him with Engine Upgrade and Outmaneuver, try to maximize punishing R1 shots, or even just Veteran Instincts and Engine Upgrade. Funnily enough, giving him a Navigator or Stay On Target may not be a bad choice given that he is a self-contained engine of destruction.
I'd say go for Stay on Target. It's a great ability for when your opponents are pulling surprise stunts on you or manage to get themselves in one of your blind spots despite your best attempts. It's also kind of amusing how Stay on Target pretty much gives him his Imperial ability back.