My boat is 5,000lb displacement and have a 4 stroke 5 hp. It slows a bit with a 20 kt headwind but I've got higher freeboard than you. Still makes decent way.
If you ever move where you have go to against a current, you'll need to bump up.
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A ship in harbor is safe, but that's not why ships are built.
1974 Alcort Minifish-Minifish
2001 Drascombe Lugger-Penelope
2004 Hunter 260-Miss Muffet