Jason,
$3,500 for an IJ with a minimal wear playfield is a pretty good find. Even if you pay $1,000 to have someone do the decals for you, $4,500 for a pristine game is still doing pretty good.
However, don't sell yourself short on being able to do it. I was scared to do it too when I got in the hobby, but I gave it a shot and it turned out great. It did take a bit of time, but well worth it.
Few pics of my decals are buried in my restore pics here....good luck on your decision
https://picasaweb.google.com/108543089600325575434/IJRestoration#
Scott