Matcha Cookies Help?

Okay, so I want to make these cookies that Maki posted ages ago because I'm addicted to matcha and these look delicious. However, I'm a bit stuck on the amounts. I'm from Canada - we don't use scales in our cooking (here in BC if you own a scale it's seen as.. dodgy). So I'm at a loss as to how much of those ingredients I'd need. Normally I'd just guess, but baking is a lot more precise than cooking, so any help would be wonderful. I'm asking for metric please, because on here I've noticed that definitions of cups tend to be different between countries, which just weirds me out. I grew up with dual metric/imperial cookbooks that listed a cup as 250 mls, so to see anything different is just.. strange. Anyway, I digress.
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