C752
If it was someone else's boat with so many supplies and cannons, they probably wouldn't be able to finish it in a day or two.
The cannon was too heavy. No matter how he tried to get it into the boat, it would be very taxing. And no matter how well your port is built, it won't be that easy to dump things onto the ship.
However, that was someone else's boat. If it was Chen Shouxin