Do the staples on the rad support. You'll need a 1/16" drill, and a longnose pliers. Curve the ends of the staples slightly before you push them in. Push them in, and bend the ends with the pliers. When you have recreated the OEM look, you'll be glad you did.
As for the splash shields, the good ones with the rubber already installed are almost the same price as the bare ones with the rubber in a bag. Buy them.