Ugh sorry to hear your fan came damaged. :/
TBH I didn't think the evga fan that comes with the SC2 is as bad as people say. I could barely hear it.
I replaced it anyway with a corsair ML120. Pretty happy with this setup. Both my aorus and the sc2 sit at temps in the mid 50s while mining. I haven't tried any games yet. I suspect the sc2 will run warmer in-game vs. mining. Looking forward to doing a little testing.
Do you have to do any DIY work or is this just plug-and-play? I didn't realize that these video cards use standard parts... If that's the case, I would drive these fans harder!