2oz of Novus enough for a whole windshield?

[marshall]

Trying to keep it cheap here, just thought I'd check whether I need to get the 8oz kit or if 2oz will do it. It's pretty expensive stuff. I'm planning on getting all 3 grits of Novus, probably need to do both sides of the windshield, and my windshield is a universal type like the ones on this site: http://www.motorcyclewindshield.com/...ersalmount.htm

Thanks,

Marshall