BarryTGash was a little disappointed that shipping container sections were not craftable. So he made them craftable.
Craftable from the workbench, conveniently titled “shippingContainerBlockVariantHelper”. Selectable shapes are:
Cost is 90 forged iron. Material has been changed from Mmetal_hard (2500hp) to Miron (8000hp). Base crafting time is 9 minutes. These stats have been selected on the basis that each piece occupies the space of 9 blocks (3×3), so 10 forged iron and 1 minute per block space.
BarryTGash think 8000hp is fine, on the basis that once the block has been destroyed, you have a gaping hole in your wall. Feel free to edit your own copy with a material from materials.xml if you think the hp is too much or not enough.
The forum topic of the mod is here.