Never updated this thread. I got the two 20 amp circuits wired up without killing myself. Microwave is mounted and in service. Now I just need to finish sealing up all the cracks and spaces, then finish routing the vent and seal everything up.
This will be "boxed in" when I'm done. It will look like when you box in any other duct work, only it will only stick about 1" out from the wall. Should end up looking relatively clean, then I'm going to box in the whole water heater area anyway.
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