[Geof]

In a practical sense you may find it is not worth worrying about the plastic getting scratched, you can still see through it okay.

I think you might find those adhesive films impossible to get off once they have been on for a while.

And just in case someone suggest getting the Lexan, Tuffak, Polycarbonate, (all the same thing) with the scratch resistant coating, MarGard it is called or something like that be careful. I discovered that the coating makes it much more likely to shatter when it receives an impact. Regular polycarbonate can often take a good hammer blow with nothing except a small dint; I once had some MarGard stuff shatter just like glass.