I fixed the Depot radius problem. You have to set the City up with one small building. I guess the game figures no buildings, no raduis mark. Picky, picky, picky. Someone needs to smack this game and teach it some maners.....
I tried to wittle down a Fishery to a Dock, but I don't understand those NIF and KFM files good enough. I'm gonna try to play around with it some more and I've asked for a bit of help from another source.
Ok, after I pulled the splinters out of my skull from banging my head on my desk, I found out that you cannot mix a Coastal and a non-coastal in the same City. Go figure......
So, a Dock as a Decoration, a Port city type with 1 building, 1 to 3 Distribution Points renamed Transfer Points and each given a different name in the DisplayNames, and you have a Shipping Port that can accept almost any number of Goods, and even return any number of Goods, and it has 1 lonely Guard Shack. As there is a new Depot level, a Railroad Unloading Platform could be made up for the depot Building, or even a version of the Dock with a bit of color change, scaled a bit smaller. A KFM would be needed, and the forklift could be added.
The NIF and KFM construction is beyond me, so we'll see if anyone wants to take the ball I've thrown and make a run for it.....

I'm correct 97% of the time..... who cares about the other 4%....