I have the following left over from a recent project. I'm hopeful this can save someone a few bucks who had a parking lot "oops" or is adding a center radiator to a 997.
OE Porsche 997 911 Grill Bracket Opening Support, 997 505 541 01 - New in package, $75
OE Porsche 997 Radiator Support Air Duct, 997 575 141 02 - New in package, $75
OE Porsche 987 Cayman Center Grill, 987 505 751 03 - Used, good condition, $35

Please see pictures below. Prices plus shipping from Denver, CO or free local pickup.

OE Porsche 997 911 Grill Bracket Opening Support, 997 505 541 01



OE Porsche 997 Radiator Support Air Duct, 997 575 141 02




OE Porsche 987 Cayman Center Grill, 987 505 751 03