Very cool boat! Paint it up like a Corsair!

You can just have a vintage cover made for any new outboard. I see it in FL at the wooden boat shows all the time. That way you get a modern motor but when the boat is floating it will look like an old smokey OMC or POS Merc.

I'd recommend finding a lightly used 2 stroke since they are so much lighter and have more power.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200