Only $700 for an SVT with just a blown motor? Run there with the money, then drop a 3L into it, or rebuild the motor with the bottom end of the 'stique and the top end of the SVT. Not exactly easy but you'd have a hella nice ride for really cheap. The suspension pieces are probably worth that, and you could probably part out the interior for much more too.
I paid $6k more for mine, but it still runs like new with 138k miles on it. I hope to see it to 200k miles in a couple years.
Scott