Tipping the scales.

Let's just eliminate the argument that's being tossed around here.

Even though these are under impossible circumstances, could my question be answered if:
For 10 straight minutes, the Corsair would be boarded on the Battleship without it breaking.
For 10 straight minutes, the Buccaneer would be Super Transformed without it ending.

Once again, ignore that this is impossible. I just want to know what sort of equips the Buccaneer's Demolition would need to stand against a Corsair's Cannon.

What kind of monster? What W. Def does it have? You need to note these things, because Buccaneer's attacks work in a similar way to Assaulter in which W. Def is not a key factor.