Hey guys, I've removed the spoiler and I'm looking for plugs/grommets to fill the holes.

Would anyone know the size I need to fill them? Also, the size for the extra hole for the wiring.

What have you guys done to remove the leftover gunk from under the spoiler?

I live around Fairfield West, NSW if anyone's able to point me in the right direction. (The Wetherill Park supercheap auto are out of grommits)

Thanks in advance!