What is best exterior vent for stove top hood?

I need to move the stove top vent hood up approx 8 inches [both of us hit our heads on the vent hood, can't even duck under it to cook.] and the existing exterior vent cover needs to be replaced, so...
Tips on moving a vent hood up?
more importantly, I need a wall mount exterior vent cover for the stove top hood.
We're in Arizona in a sometimes cold *and* windy.area, 25+F, 40kts
Don't want dust coming back through the vent and don't see any block inside the hood itself.
This is new construction, exterior walls standard 2x6 filled, exterior surface is stucco.
Right now, I sealed off the vent, and shut power off to the fan, because 1. don't seem to really need a vent over the cooking area 2. the exterior vent cover is possibly the cheapest plastic cosmetic grill I've ever seen. Not even mounted well, touch, would fall off the house type mounting.
Rest of the house is built substantially so this appears to be one of those last minute cosmetic touches.
Thus, where to get best cover?
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Check your local codes for minimum distance from stove top to range hood, then position yours to anything you wish above that. Many range hood kits have exterior vents with screens/flaps integral as part of their package. Broan sells these as replacement parts as well, for example. If you use the stainless vent as shown in Bob's post above it will outlast the house.
Joe
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can't be moved. It's a big solid one.
Arietta CHN001MX30 or CHN001MX36
Don't remember which
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