I'd go with EddieM's first suggestion. Blind returns look great but two of them meeting that extractor housing would make it look very busy up there -- better to have it blend in.
It doesn't help that you looked to have bitten them off in angerI caulked them but they still look a bit rubbish. I think you're right RIP them down and pack them out with no nailsView attachment 185269
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