№637905 Diesel tanker for sale, cheap

Got this 1999 diesel tanker with only 35k miles on it which is crazy low for something that old. Previous owner must've barely used it or something. Engine runs pretty smooth for being 25 years old, starts up fine most days. Tank looks good to me, no rust problems or leaks that I can see. We bought it thinking we'd use it more but ended up going different direction with our business. Cab's showing its age - you know how 90s interiors look - but everything works. Seats are worn but not falling apart. Our mechanic looked it over when we got it and said it was in good shape for the mileage.