NPC piracy is the opposite of very profitable, I have no idea where xondk has been pirating lol, though if you wanted to target NPC's an FDL is probably suitable.
If you want to genuinely pirate you need to consider what class of ship you want to go for, your ship will need to be able to reliably disable / win vs it in combat, it should preferably masslock and it should certainly be faster.
Then just load up with a collector module, a hatchbreaker (if your chasing slow targets) and cargo space and go shoot cargo hatches. Oh and don't forget when dealing with players generally talking will yield you far more profit than just going in guns blazing, compliant traders are where the moneys at (the little that there is).
back to the NPC point, I do recommend practicing on some NPC t9/7/6's though if you want to be sure how to get cargo out.
I'd recommend interdicting, find a system you don't mind possibly getting in trouble with if anything goes wrong or powerplant desides to blow (1% chance of that when it dies I think), npc's will spawn 'from' stations with appropriate export, but they will also spawn near nav beacon with appropriate import to the various stations in the system, so just find one that has a station with high value in or output look for npc's flying towards/away from the stations, take the size of them you think you'll manage best and go for it.
Thanks for the tips. What do you think Clipper or Cutter? Cutter might be a bit overkill maybe? I would like to do something with her though, she's just a hangar queen currently.