Well I went ahead and went through some more layout planner ideas...
I promise this is the last one
But using the same 4x8 space I came up with this
I could sit in the middle of this and watch the trains go round
Once again I lose the provision of the back-scene to switch out locos and whatnot without anyone seeing. BUT this makes great use of available space. One side is Ross-on-Wye station, the other side is scenic, I could try to factor in a bridge that crosses the river wye (on the line to Fawley) and a perhaps a tunnel (on the line to Grange Court) though that may be asking a bit much. There would be scenic breaks though so as to "divide" the two sections.
the baseboards are only 1ft wide, providing much more space than I thought it would actually be. Most likely would consist of four 4x1 sections two 2x1 sections and the triangle for the yard. Which leaves one 4x1 section left from a 4x8 sheet of plywood.
There are two ways to do things... The Great Western way, and the wrong way.