Magic 28 #7, and socks for me

Not that I don't knit plenty of socks for me, but it's been awhile since I cast on a pair that was just for fun (as opposed to trying out a new pattern- my original, or someone else's- or yarn). I got this yarn from my friend Melanie for my birthday last year, and it has been rattling around in my knitting bag long enough that the bands have disappeared or disintegrated. I'm sure it's Marks Clown, with a fairly high cotton content (and wool- I know it's superwash). I love how the patterning is coming out, and I need a pair of red socks (though the actual sock is a bit pinker than my scan). My only worry is making the socks match. Since there is only one color, it's going to be hard to tell the difference between where the wide red/white band starts and where the narrower red/white band starts when I cast on the mate. I have a 50/50 chance of getting it right on the first try, and the socks will look fine even if they don't match perfectly.

I can't remember what yarn Magic 28 #7 is from- I know that the variegated is one of Dana's handpaints, but the coral is a commercial wool/mohair. I just don't know whose commercial wool/mohair (it doesn't look like a Brown Sheep color).