18 help scuppers and overboard drain

[Greno]

My boat (1979) is in great shape except for the floors, but I will get a few years out of them before I do anything. I have a question about scuppers. I am a fanatic about taking water over the stern as it sits very low with the motor well. I am about to build a splashboard for the motor well as the piece of plywood that came on my boat is not adequate to me. The scuppers have been filled with 5200, but as I have gathered on this site all they did is drain to the bilge anyway. Has anyone ever made a small reservoir and pumped the water overboard from the scupper. I plan on finishing removeal of the livewell in the floor (have only knocked out the stern portion) and will have room for another pump when I do this. The only issue I mentally have with this boat is the scuppers and lack of overboard drains, except to the motor well of course. Has anyone done this. I am thinking about running out the same line as one of the bilge pumps, but setting check valves or just running another line out. I just want to be able to get water out as quickly as possible. Am I being too crazy. We get really erratic/choppy seas here in the bay and northern gulf.

Eric