Originally Posted by Slp_loudmouth
I haven't found plugs anywhere
They aren't sold as such. You'll probably wanna go by your local parts supplier, Pepboys or whatever you use, and do some sizing. You're not looking for "Mustang Wing Delete Plug" as an example, but rather plugs which fit.
I can get paint matched stoppers here, but I don't see many online. So you'll probably have to take the time to go into the store and look around. Find something that fits, and hopefully matches your paint, then pick up some silicone to seal them.
I've not done mine, but my buddy has on his GTO and that was the route he went short term... though he has since filled, sanded, painted and polished it.