If you're planning on heading out across the big blue sea, start saving your money for a motor replacement. Somewhere along your travels, you'll be glad you did.
Hence the 3-4 years we want to squeeze out of the Penta.
That's how long (at a minimum) we expect to spend in and around Mexico. Northern MX is a perfectly good place to repower -- inexpensive yard fees, close enuf to the US we could even drive a new engine down there, and full of skilled mechanics and machine shops. Affordable help, too. I just paid a Midwest marina over $2000 to haul the boat out of the water, squirt some antifreeze thru the pipes, unstep the mast, and plop the boat on a trailer. Maybe six hours total labor. Rather too proud of their work, are US boatyards.
We either have to repower here, while the boat is in the back yard, or after we've got it to Mexico. We don't generally motor if we can possibly avoid it anyhow, and we won't carry refrigeration or a watermaker that requires engine charging. And I refuse to call a marine auxiliary engine a safety feature, because that sort of thinking gets people killed.
It's helpful, verging on necessary, for getting into and out of some harbors. That's about how we view the engine.
It's telling that this MD6A, at a mere 10hp, was not considered particularly undersized for a 7500# sailboat in 1975. Albin did upgrade to a 13hp motor later. People sailed more.