I'm going to vote for find a glass hood also.

My reasoning is, I had a spare, and cut it. I've never, gone back, but have thought about it, so I am glad I kept a good flat hood.

....BUT the reason I'm saying go glass, is the obvious weight thing, and I don't think I've ever seen a really top notch job of putting a scoop on. The all in one hoods are the better way to go IMHO. My scoop was built by a pretty reputable guy, and it has been a bit of a pita as far as cracks etc..

If I could do it again, I'd go with a glass hood.