Looking for trench and Wall art for Dark Tide

While we are trying to use 3d terrain exclusively in the club, we’re going to run a Dark Tide campaign in a few weeks and despite having a healthy selection of terrain for the four or five tables I assume we are going to need (not everyone will show up all the time) I think I’m going to have to settle for 2d terrain on certain things. Namely the landing boats in the scenario 1, the 4 foot long trenches in the scenario 2, and the wall and gate in scenario 9.

Does anyone have any decent printable art for this? I’ve got a plotter at work that can easily print a four feet poster (and my own poster material for it) so I can do some pretty high quality prints.