Loose Cannon Productions made a great set of 1/700 dockyard buildings, with paper stick-on overlays that were extremely easy to paint and weather. I'm not sure if any are still available, check Ebay or maybe Freetime Hobbies.
Otherwise, for your dockyard needs, go here: http://www.am-works.com/.
Alliance Modelworks has an absolutely exquisite line of 1/700 PE dockyard buildings, cranes, rolling stock, etc. While I haven't used it, I sure wish it had been around when I did my own dockyard scene and had to scratchbuild 1/700 railcars and the like.