The first thing you need to do is get some baseline performance numbers. WOT RPM and speed- both need to be accurate (GPS and a verified tach). Then you can start to talk hypotheticals.
A modern CNC prop will wake the boat up significantly, but is unlikely to add much top end. I tend to prefer Acmes, but Eric from OJ is great to work with as well.
From there, you need to consider what youre trying to achieve, and what youre looking to spend. Just about anything is possible given enough money... assuming you know what to do with it.