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: 2006 Mazda3 s GT Hatch: 111k, Gray, Manual
Gone: 2002 SVT, #1654
Hers: 2010 Focus SES: 84k, Ebony, Auto, Moon and Tune