If you get a key blank, be sure to find a reputable locksmith to do the work. I got a RE key blank and went to my local ACE hardware store. They totally butchered the job and the "new" key didn't work at all. All they offered was...not charging me for the lousy work.
I was able to modify that useless key with my dremel and I got it to open the side panels. But it doesn't fit the ignition.
So pay the price for someone who knows what they are doing.