Used tanks are a gamble anytime you use them for the $130 that most vendors are asking you are better off biting the bullet on a new tank. You have to rememember these trucks were designed for a 5-10 year lifespan your asking and awful lot of a tank to go 60 years and then some. I have parted out 24 trucks in the last two years and never found a single tank I thought warranted cleaning/refurbishment for my own truck. As for value I could not give them away they go to the scrapyard with the rest of the bones.