The trash can wouldn't fit in there any longer if I install a duct, however we only use it to store paper towels anyway.
There is another possibility of drilling a hole through the inside of the step, on the left, as well. This would provide direct access to the AC unit.
As far as bringing it up and through the cabinet, I'd actually be working inside the cabnet accessed below the microwave on the outside. I was thinking fish tape or clothes hanger to get it there.

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SOLD! 2006 30th Anniversary Vista 278
"Conch'd Out!"
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