On a motorcycle salvage or rebuild doesn't matter they are all good. If there is any frame damage then the bike goes to CD or Junk title which can be fixed however the frame must be replaced.
Salvage just means some cosmetic damage and maybe fork tubes but easy fixes.
In many cases it is the best way to buy at a great price if you know what to look for. I have probably purchased over 50 salvage bikes and my current 99 interstate is salvage - love that thing

$3800 is a tad high as I paid 2700 for my 99 IS 4 years ago