Outer grill shell swap - rivets?

[JadeEmperor]

For anyone that has done a shell swap or others with ideas, what did you use to attach the supports on the sides so that it would bolt up to the fenders. The factory rivets look like solid rivets, I have "pop" rivets, but was wondering if there is any way to reattach the brackets with a simple rivet that will look like factory and not have a hole in the face like blind pop rivets do.

Thanks