Have done some more playing with the track plan. First I tried with medium radius points, but that needed almost 8 feet to get the platforms, station throat and fiddle yard in. I don't want to lose any of this - though I guess I could cope with a single track access to the fiddle yard, but it reduces the operational scope (the fiddle yard needs moving after every move, whereas I'd prefer to be able to do an out and in (at least) before fiddling. I remeasured the space available, and, though it won't stretch to 8ft, it will allow a 6ft6 layout, and I reckon another 3" in width is possible - makes a sector plate more appealing as I can use the extra room at the back to put a couple of lengths of track in to store stock on.

Having reset the size, I tried again, but used the smallest finescale points. This extends the plan a little, but still just about keeps it within the length. I've removed the second track from the station throat - it only allowed trains to depart the rear line, so has disappeared in a rationalisation of the track plan. As I like this plan more, I've added a hint about construction - blue line is backscene, green is sector plate, red is baseboard join. Had to shorten the loop on the rear line to move the point off the joint. Couldn't do the same with the near pair without reducing the loop length too much, so ended up swapping the double point with a double slip, which clears the joint nicely. Also has the advantage of lengthening the branch, and bringing it further forward. Not sure if this is suitable for a minimal layout.

I think this looks much better than the last one, but now not convinced by the branch and sidings. Kenton has commented the parcels line should be laid out differently (the crossover should favour the passenger line, and there should be somewhere to hide parcels vans when the run-round is being used) - something else to ponder