I'm currently an estimated IB 39/40 but I think I can stretch it to become a IB 42/43.
At minimum I think you're going to want to get a 38 and a 40 would put you in good shape. If you are able to get a 42 or 43 you'll be in really good shape from what I can tell. I am less familiar with IB curriculum so take my thoughts with a grain of salt but from what I'm seeing you're in a good spot if you can get these scores.
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