Are you referring to the Fresnel lens marquee? I don't have a flatbed scanner big enough to scan the whole thing in one pass, but could do a half-and-half deal. I have a 15 megapixel Sony camera I could just photograph it with.
What is your goal here? If it's to create a replacement marquee, it isn't going to look right without being the original Fresnel lens. That being the case, resolution isn't going to play a big role in achieving your goal.