Uh..... does this look right? First time in the water, finally!!!

[smokeonthewater]

you can use a jackplate to raise the motor with the existing bolt location and glass a splashwall but with the exception of waves slpashing over the transom, this will have no effect on the water on the floor issue because the holes and floor will still be at the same height....
You could put valves over the splashwell drains but water in the splashwell is not a problem and doesn't need fixed.... the splashwell is there for a reason and is expected to get water in it.