Octalink to Hollowtech II

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Good morning Rats,
I have an old Cannondale F29 mtb that I'd like to upgrade the crankset from an Octalink to a Hollowtech II.
I searched Shimano's compatibility site and watched a couple of videos but am still unsure if it's possible.
Wilson has a BB30 68mm shell.

Any advice is greatly appreciated!

Edit: I also have doubts about chainline with this change.
 
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