:fm:
+1, the insurance should cover it, if not get a lawyer
+1 there find all the reciepts for all the parts and find the value of the truck and turn it into the shops insurance co. because that was a fire of the shops doing that caused you the lose of your truck and money there. Their insurance should compensate you if they don't consult a lawyer. Even though you don't have your own insurance the shop has insurance.
Hell next time get storage insurance I pay 120 a year for storing my camaro.