I wouldn't recommend a bilge pump to most people. My situation is different in that I beach launch and recover a heavy boat in surf. Every pound I can shed makes a difference. Plus I have a large AGM battery fitted.
Instead fix the leaks in the "co"? If that was supposed to be corner, and they are really small you might be able to super glue them. If not some proper adhesive should do the trick. Put the boat in the water without the floor boards in, grab a paddle and float around with a permanent marker in hand. When you see a leak, mark it. Once the boat is dry, repair any leaks.
Keep the scupper plugs in place when stopped as they will fill the boat until it reaches neutral buoyancy. If and when you want to drain the boat pull the plugs with the motor off, and start the motor and go for a high speed drive. It will be drained in a matter of minutes.
Here is my thread on bilge pumps. For me it works awesome and I use it every time out.