You could always buy the car, and get it painted and lettered. Christine Braden has done several items for me and I have been extremely pleased. My best suggestion would be to shop for a Kline tank car. My email address is in my profile. If you are interested and I will send you Christine's contact info and pictures of some of her work.
Do an eBay search for "K-LIne K631-1932 ". It appears to be close the car you are looking for