With a salvage title, I wouldn't be willing to pay more than half what they're asking. The SVT is getting rare, but not rare enough to have to settle for a salvaged one. I'd say be patient and wait for a nicer (and cheaper) one to pop up.
Mine: 2004 Subaru WRX Wagon: 116k, WRB
Gone: 2002 SVT, #1654
Hers: 2012 Focus Ti Sedan: 67k, SGM, Manual