So it's been 3 years since I started this thread (slightly embarrassing!) but finally some progress! I've claimed some space in the shed; enough to give me a layout of 8' x 6', plus a fiddle yard coming off the front of the layout in an L shape, which is great because I can have lots of rakes ready to go. Might look at removable cartridge setup even? Anyways, to start, a non-picture! But I'm excited none-the-less as it's the first baseboards I've laid down since I was a teenager!
Still a lot of work to be done on the underframe, but getting there. So your imagination is required here. This is a very rough outline of what I think I can fit in the space. It's a single line, over 2 levels. At the front of the layout, on the lower level, is the station area, representing Arklow I suppose. On the upper level is the Avoca River, with the factory complex on the north bank, and the Ammonia tank car unloading facility on the south bank, as per the real site. The theory here is that empty Pallet Fert. train would pull in to siding off the main line, and reverse across the river into the factory. This is not prototypical, but a space saving compromise that I'm happy with.
When you've finished sniggering at my autocad masterpiece there, you can look at the next picture. Here I've roughed out a couple of bits of track to see if my plan is possible. The A Class sits in the Factory Yard in the background, across the river. I think this will work visually and operationally. I could reasonably fit the loco plus 3 or 4 fert wagons on the straight, and the loco can then be shunting wagons across the river in 2's or 3s. The 141 is sitting at the Ammonia tank unloading facility. Again, my understanding is that the 6 tank + 2 Barrier consists were split in 2 in real life, so I can get away with shorter sidings here. Finally the Mk2 coach would be sitting on the main line on the upper level, and I've another 2' to play with in front of this point, where the station will go.
I've finally some time on my hands so I hope to tip away at this over the winter! I'll keep posting as it progresses, and comments and encouragement always welcome!