Welcome to my latest plan - it shows an inglenook set-up lower left. This is a radical change to previous designs for the extension as it is set in an industrial setting, much like Fawley is.
The trackplan should be easy enough to see, but here it is in schematic view:
I'm not sure what space this would occupy, but fiddling around with some old track would provide the answer. Yes it is a radical change, but would it be acceptable?