Typically what I use a reference on used vehicles is a combo of KBB and NADA. Why there is such a spread of the two agencies I dont know. But I will take both and then average them out, and that seems to be pretty fair. Salvage titles kind of scar me. If you know going in you are never going to get retail and are OK with that its one thing. But you sure as heck dont want to pay retail for it either. To many variables on it. If it was a theft recovery and they stole the wheels and interior say thats one thing, but if it was drove into a lake well.....
I have thought more than a few times about pickin gup a salvage title say Victory Vision or Cross Country. But most of the time they are "totaled" is because the plastics is all fubar, and we know how much it costs to replace that stuff even though nothing is really wrong with the bike itself. If I did buy one I would have to go in with the knowledge that I was going to drive it until it quit or I quit.