From her purples, I chose Purple 405. It's that gorgeous royal purple (not blue-purple, not red-purple) that's so hard to find. That was the first stripe below the Mountain Colors 10-row stripe. Then I started hunting through my stash for the right green, red, and gold/yellow, laying all my reds, greens, and yellows against the Mountain colors and that purple. The green is a dark, rich, cool greenm Cascade 220 #8893l the yellow is the color of common marigolds--more gold than yellow, Cascade 220 #7828; and the red is Ella rae Classic #98, darker than my usual red socks (that red, #31, sort of leaped out over the Mountain Colrs and screamed LOOK AT ME which wasn't what I wanted. The instep stripe of Mountain Colors is 10 rows, and the purple is 7 rows. I had only one skein of the yellow, bought for stripes, so I made two balls out of it for convenience (working on two socks at once it's handy to have two balls.) I had four skeins of the green, and wound it up, but didn't break it--four skeins is enough for 2 pairs of socks plus leftovers, and if I don't do more than five rows of the green on each sock, I'll still have enough for a sock from it. I have two balls of the red, so that's no problem--if I get to the red stripe at the same time on both, I have two balls to draw from. There'll still be plenty for a pair of red socks from it.
I'll add images to this post when I am not worried about a sack of yarn and its attached sock flying off the table and across the yard.