thing about an svt is it doesn't matter what kbb says, they are getting harder to find every day as you know. but, a salvage makes it less desirable.
check with your insurance about insuring a salvage vehicle before taking another step. some will, some won't, and some have stipulations. Don't buy and then have an oh shit moment.
definitely have it checked out thoroughly before making a decision, use carfax but take it with a grain of salt since I've found not everything is on them anymore.