I can't speak for Raine, but porches frequently have the most detail work, which is a big part of choosing paint schemes.
The more I look at your house, the more I respond to it. It has the proportion, the classical detailing and the overall presence that I really miss in the midcentury 'Cape Cods' around here. I guess it's just "my type" !
Are you interested in authentic Colonial-period colors?
The present yellow and the blue on your interior were the two big Colonial Revival colors from around 1900, for what that's worth.
With an unfussy house like this, I think you can go one of two ways:
1. A genuinely simple color scheme: One main (body) color. One trim color, relatively light, to allow the sun to show off the angles and planes of the woodwork. Maybe a third accent color applied sparingly, perhaps on one or more doors.
2. A color scheme that seems simple, but actually uses several shades to bring out some of the details without making it look busy. At most, you just want to enhance the natural effects of sunlight. Almost like a makeup artist does with a model's face.
For example, painting the window sash a different color from the trim would be authentic to the probable age of those windows (that is, Victorian). The Victorians usually went with sooty "sash black;" you could give them a nod, while still staying truer to the colonial style, by painting the sash just one shade off the trim color.
EDITED TO ADD:
I looked up the Historic New England paint colors, and holy catfish, this tool is incredible! Click on the color and you are instantly supplied with multiple possible color schemes. I never saw the like.http://historic.getservd.net/