For the hole you drilled. Cut a piece of plywood
to fit the hole (you may have to lightly sand the circumference of the wood
for it to fit). Epoxy it in place. Then, repair
the other bits, and re-paint the bottom. It is a dinghy
, and it is meant to be abused.
We have seen people who have admirable, beautiful timber dinghies, and watched as they got out into waist-deep water
and gently carried their art work
ashore. Personally, I prefer to get ashore dry-foot, and therefore, a sturdy dinghy