Coming from KY check to make sure its a salvage title and not a scrap or non-repairable title. KY can fix just about anything and buying out of that state can be scary.
In KY the non-repairable can be repaired and regestired just like any normal title. BUT it can not be reregistered or transfered to very, very, few other states. Even if it is fully repaired.
To really give a better est. you need some more pics. Depending on where you get parts but should be able to fix it for $1500-$3000. Depending on how much of the work you do yourself.
Honestly, if the truck is repaired correctly what is the salvage title really going to matter on a 10+yr old truck with 150K+ miles. Its more about condition at that point.