By all means contact a reputable locksmith who is knowledgeable to safes..
Driving out hinge pins, cutting hinges and etc. won't overcome the vertical and horizonal bars that most safes have in the doors which extend into the safe to prevent the door being pried open.
If for some reason my gun safe combination became lost, I would contact the safe manufacturer for advice, which would likely be, "See a locksmith quailfied in safe opening"..
There's been too many Hollowood movies showing how they did it....
NRA Lifer Since 1968
Former Texas NG