Life support likely wouldn't be a problem, as the Empire wouldn't have the vehicle in heavy use if it couldn't operate effectively in environments with no or unbreathable atmosphere. Either the cabin can be fully sealed with the viewports shut (as seen at Hoth), or more likely the driver and gunner would just wear pressurized suits like AT-AT operators/TIE pilots. That's not to say there wouldn't be huge problems getting it flying, but with the ruggedness of SW technology it's certainly believable for me. Beyond the obvious structural reinforcement that would be needed to prevent the engine pods from ripping off, whatever cargo room there is (wookiepedia lists 200kg) would have to be devoted to basic SW flight technology like repulsor coils, stabilization, navigation, the etheric rudder (though some of these might be found in the engines instead), etc. Hyperdrive and shields are probably disqualified on the bases of space, power, and cost requirements, so you're left with a ship that is slower and less agile than a bomber, has weaker armament than a fighter, no shields, and a hull that can be ripped apart by a couple hits from any decent cannon (as seen at Endor), pretty much a perfect ugly
Really the only possible advantage it has is the turret E-web blaster cannons, which (although useless against anything with shields) might help dissuade a TIE fighter if it were outnumbered. Definitely not something you'd see a lot of, but a single one mixed in with a set of modified Z-95s/Die-ings/other uglies could add a bit of character to your pirate raid.