I have now received a successful print of this model, however I printed it from a different file which is why this one is still showing up as 'first to try'.
I also have 30' and 40' containers avaialble, and will be making all of these available as multi packs to reduce the unit cost.
I also have future plans for a container wagon with 3x20' containers, or 1x20' + 2x40', and also road trailers with containers (printed as one piece, the trailers would be too delicate otherwise).