Most of us didn't know much about boats when we started - no worries.
That is a planing hull. 45mph is certainly attainable. Glen-L has a speed calculator that might be of interest to you.
http://www.glen-l.com/how-fast.html just click on the
Planing boat speed charts link.
Wooden boats are exceptionally sturdy and lighter than a comparable fiberglass boat. You can go much faster on less power. Build it right and most people can handle what the boat can.
Good luck,
KB
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