Hi Karl,
The short answer is no we don't have a fixed completition date for the layout.
We are building partly as a test bed for a much larger DCC layout based in the same mid 70's blue diesel era we plan to build very soon. The layout will however be a fully working exhibition layout. I suspect it could make some sort debut in 2015 whether at our Club show in September 2015 or at another show if there are any exhibition managers who what to stick their neck out and invite the layout to their show
We are not adverse to exhibiting the layout in a part finished state. However the size of the layout means once the track is laid and the main structures are made there will be very little space for lots of scenery so it will be easy to create something farly complete fairly quickly
thanks