After cleaning the bricks and stone or concrete, pick a beige and an offwhite from the foundation stone in the first picture.

Wow!! Cool. Have you researched the original colors of the building?

Nice find. Hope it is structurally sound throughout. Are you going to rebuild or face or just whitewash or paint the front steps?

Are you going to white wash or paint the "white brick" accent pieces? If so, the color you end up with is the color you need to paint the fascia and all the window and door trim and the soffit and porch ceilings, too.

Any other wood, previously painted surfaces such as the shingle siding would be a matter of personal taste. Consider the color of the roof shingles -- what they now are and what they would be if/when you change them -- as well as the reddish brown of the brick along with your preferred color choice for the front door when deciding the color for those gable ends. They appear to be tan or light brown and that would be a good color for them; if you choose an off white or a tan, avoid the shades with a pink or yellow hue.

If the front porch is wood in need of replacing, consider adding yet one more step to the front steps and raising the floor level of the front porch (or at least that front entry part of it) rather than leaving that one extra step at the front door.

I don't see any vents for under the floor -- you may need to add some as well as add more attic vents. Older homes sometimes failed to have those, creating the potential for moisture/mold problems.

Let us know what the inside looks like, too.

What did you decide? Yeah, I can see where someone could really get into picking 7 different colors. The main problem is one of long term maintenance. That's a lot of colors to have to keep touching up over the years, and weather being what it is, I'm sure you'll be doing some aspect of it every other year! I like the advice of Marco, who advises that the brick is indeed, one of your colors.