At just about any autoparts store in the "Help parts" section they have all sorts of these type fasteners in different colors in blister packs. Different stores have different selections.
I ended up picking one of these panels from the yard not too long ago and I reused my fasteners...so I think I have those extra. I can check this weekend...if I can find them, they're yours.
Thanks Caifan... and the auto part stores by me suck. Nobody has those clips or fasteners... But I can buy the 3 fake hood holes that belong on a buick but appear on every Honda Civic with a cherry bomb... go figure...
Try getting a hold of Body Shop Fastener and Co (BSFC) in Manitowoc WI. It's a local shop in my town. If they have the part you need, I could get it for you and ship it or else if maybe they'll ship to you. I bet they'd have it.
Here's their website. If it's not on their give them a call or email with pics.