If you're going to do it, I'd take it to a sign shop and have them do it... it'll probably cost you $50 vs $20 for just the material on Amazon, but they'll do a far better job on corners/dips/concaves/etc... there'll still probably be bubbles at sharp concave 3D corners or high/thin convex ribs but they'll do far better than most DIY applications (knowing when/how much heat to apply, etc).