If no one replies with the part #s you can try gmpartsdirect.com customer service -
customerservice@gmpartsdirect.com - they'd need your VIN# to verify the model/trim (they always require this) and what part #s you're looking for - ask about availability and their discounted price. They are very responsive and help many camaro5.com members including me find part #s this way...
Please post what they respond with so others will know as well.