Not that I'm a sock pro....but I would definately advise that you start from toe up, just seems to make sense. Then maybe increase (M1) in the ankle area....where then you can incorperate your own design (ribbing, and so forth).
Good Luck, And if anyone does have a pattern I'm curious to see it. I'm sure its fairly simple.
Just one question....When you pull up the sock, is it a snug fit?