Manny
An outboard isn't a good idea for a boat as large as ours. Motoring into the waves will make the outboard come out of the water as the boat pitches. When the weather is rough and there's a problem with sailing, the motor becomes critical. The day I bought my boat, I motored for 6 hours into 18-20kts and 4-6ft waves. It was my first experience with an inboard diesel, and I was delighted with it.
When I had a Catalina 22, the outboard was adequate because the boat was basically a daysailer and it only weighted about 2500 lbs. I didn't often go out when the wind was really up, and I didn't go far. Your 30 is closer to 10K in displacement. You'll want at least 20 hp on an inboard if you need to motor into 20kt winds with any reasonable speed.