Here is a shot of one of the OOCL container ship models I worked on back in the late 90's. This one (part of a batch of 15) was done close to Z scale. We also did several that were N Scale. It was my first interaction with Mtl when I requested a quote on 6,000 40' containers. I also sought quotes from Delux and others for the project. In the end we laser cut blocks with rastered detail on them to save money. Thinking back, painting all those container would have been an interesting feat.
The customer wanted the hulls to be resin castings and not fiberglass for some unknown reason. First couple of pours, even though they were hollow were spooky to watch set up. I've seen these size molds erupt in flames...and these were smoking even with slow cure resin.
Joe
edit, fixed img tag. -gfh