The entry level Scum Firespray is leaps and bounds ahead of the Imperial version. For an extra 2 points, you're gaining +2 pilot skill, an elite pilot talent slot, and the ever tricky illicit slot.
The Firespray can be built in a number of different ways but be warned, the named pilots are always going to be better purely because of their abilities. If you want a bomber, then go to Emon, hunting aces? Boba is great.