'69 grill

[Malamute]

Finally got the basement project done and garage clutter is out of the way. Pulled the truck in yesterday to get started for the winter(pushed actually, the damn starter went out on me). My grill is riveted in, this wasn't from the factory was it?

I'm going to have to drill them out to remove it but was wondering what I should use to put it back in when I'm done. I really don't want to rivet it back in. I've wrenched on cars on and off for years but never pulled everything off to this level and want to make sure I'm prepared for when things go back together!

Thanks.