How to keep a 1976 20' MA from sinking at the dock

[Callipygian]

I tried a few searches without much luck. Obviously not self bailing so what do you do when you leave them in the water? Cover? Go down when it rains and bail it? Is there an easy fix? I also want to give a shout out to Big Shrimpin who did an awesome job on my transom this winter. We took off the jackplate which weighed in at 50 lbs and used a synthetic core to lighten up the back end. In the end the boat sits in the water without the plugging up the scuppers and comes onto plane without first going vertical. Not to mention it looks great too.