Here's a piece of advice: Grind off the back of the rivets, restore the dash, and epoxy everything back together when your done.
I spent a LARGE chunk of cash last year on my car and the one purchase that really burned my tail (besides dropping $1,300 for a TTI exhaust.... WITHOUT mufflers.) was buying a pair of VIN rivets. Those 2 little correct rivets cost me $35 when I finally found a set for sale! They pop up from time to time and the prices vary greatly. The set I bought I found over at MoParts.Com. One of the board members there had some for sale.
Cut the buggers off from the back. Trust me...