Hi Don...yes, it was actually a Lionel 804 tank car I bought out of a guy's junk bin at a meet many years ago. Only the frame was salvageable, the rest was either missing or mashed. I seem to remember that someone had soldered the handrails directly to the sides of the tank. Tossed that away, beat the frame back into shape and repainted it black, then got the rest of the bits from George Tebolt (wheels, axles, couplers, and journals). The Lledo Hudson ambulance was found on eBay ("Models of Days Gone" series, 1986). A bit of chain from the jewelry aisle at Michael's, and that's about it. I liked the white tires on this little car, sets off nice against the black frame. Lledos are a bit small, maybe closer to 1/64-scale, but it seems to work here.
Paul