Re: propeller help
Ran some rough number for ya. The rigged weight of your boat should be about 3500lbs (dry) - add fuel, people, a bit of junk - 4000-4300 lbs (rough guess).
Running a 200 horse with 1.87 gears (standard) the "theoretical" best prop to reach 5250 rpms (optimal WOT) would be a 3 blade 16.5 pitch.
Since there is no 16.5 pitch, a 16 or 17, 3 blade would be close.
Compared to what you are running now you would gain about 500 rpms with a 3 blade/17 pitch and about 700 with a 3 blade/16 pitch (keeping the diameter at 14 1/4 or 14 1/2).
There is a 15 1/4D 15P which would give you about 750 rpms more than present (all else being equal), that may also suit your needs - especially if you tend to run "heavy" (more than 1/2 tank of fuel and 2 or more persons on board "on average").