I would be somewhat interested in a hood scoop. I think that to be practical there would need to be some kind of duct to deliver the air to just below the air filter, where the engine would get the benefit of the cooler slightly pressurized outside air, but any water in it would fall harmlessly away.
I definitely would NOT buy a hood with gauges on it. I see your point about wanting to be able to just glance down slightly to look at the gauges, but I think the answer would be to develope a dash mount gauge pod, to hold the gauges just above and beyond the steering wheel.