Hello XFi1382! I am also in the same situation you are in, as in I do not live in the us but am now currently here to study for a few months.
I'm actually leaving in a few weeks!
Anyway, for similar designs (closed lacing) in the same lasts, you can confidently order the same size. I am sure the Mcallister will fit you. I have strands and mcallister, they feel the same.