I've got a paint question; We're going to paint my son's 94 Firebird and I'm wondering how to address the plastic nosepiece. There's a lot of cracking in the paint on this part. How do I prep this to paint it so that doesn't come back? Is there any special way to sand these plastic pieces so as not to mess them up? Anything you have to add to the primer and paint for flexing? Our plan is to do as much of the prepwork as possible and then have Macco shoot it.