The catalina 27 is very easy to sail. That being said, I dunno nuffin' 'bout birfin' no outboard on that boat.
I know I can make 5.5, 5.7 kts with the A-4 inboard.
Take the advise of the sailors here, they're good people.
(well, most of them)
Also, take a weekend or two, talk to some people at the marina, ask for them to go out for a day sail with you. It'll make you much more comfortable with your boat. You can do it. Raise the sails, know when to reef, and go slow, you'll be fine.
We are not primarily on earth to see through one another, but to see one another through
Some people are like slinkies: not really good for anything... but you can't help laughing when you push them down the stairs