Gantry Crane / Shipyard Crane

After looking and failing to find a gantry crane for my needs I decided to sit down and put one together. Here is my version of a full sized dry dock , shipyard crane. I made this in 1:200 scale, of course, it is easily converted to other scales. I made mine with 10 uprights each side, with a dual walkway, and a centre walkway. Photos to come. It is as accurate as I can figure, i did have some plans for the gantry crane from WW2, so this is basically an effort to copy it. Oh, and this is a resin print, i tried to do the entire thing in filament, but need a .1 mm tip to get the best outcome.