Is it possible, O yes. You just have to be intelligent about it.
For my design project in college we had to take our tools to the race (FSAE). Upon unloading the trailer we discovered the keys to our large, somewhat new, SO box were no where to be found. Using a dremel we cut out a very small patch on the top, right above the lock. No damage to the drawers and minimal damage to the box that was late fixed with a welder.
I am presenting this info for legal activities only. The way the seller did it, was not the intelligent way. Time was not on our side so we had to act quick. Since the seller owns the box at home they probably could have just bought a key for it.
I have a feeling there is a fishy story behind it. Stolen?

But why would they do that much damage to it if they just could have ordered a key. Also if it was they box, they would know exactly what tools are in there and the value of them probably well exceeds $200, unless it is empty or full of HF tools. Proceed with caution.
