[willy]

Welcome, what year boat, they were all rigged differently. Your livewell could be plumbed to a pump to go thru a thru hull or most commonly just drained into the bildge for that pump to put overboard.
You would have had a bildge pump from the factory on all of them I believe. If you see a switch on the dash for it you know for sure or it could have been an auto pump only. Turn it on and listen. You will find it in the bildge at the lowest point center of the bottom of the hull under the floor and there should be access there to it from some angle. If it is not working fix it before doing any other improvements.
Some do water ski and have installed the pole set up, they will chime in I am sure.
if you are talking about a pump out for the live well those that came from the factory I believe were mounted at the end of a hose in the bildge not in the live well itself.
Your electronics were likely installed by the owner or some marina type place.
Oh yea, you live in one of the most beautiful places on earth, congratulations