Nice little boat if it's the one im thinking of. The outboard on the otherhand, If it is a V4 there good up to about 125 hp Over that they tend to wear out quickly. But are inexpensive and easy to re-build.
FYI-that 1978 140 hp Evinrude ran for 22 years before my bro proactively sold it and re-powered. Heard they had low rings and tended to carb up but never an issue for us.
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Things done at the last possible minute are done with the greatest possible information. Procrastination is, therefore, the most efficient means of doing things.