Hmm, you’re making a good point and introducing two new not-yet-considered elements.
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Wolverine is only 5’3" (160cm) tall. Was he originally taller, but had a body destroying even, that only 80% of him was able to grow back rendering him shorter than he was before.
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Wolverine is Canadian. So neither the USA or Oz money rules apply, but instead Canadian rules. What those are, I do not now.
Thats the idea in concept. Its a bit harder than that though so thats why its not in operation yet.