Also the point leading to the bottom siding is down to 1340mm (53") radius. Not sure what loco would go around this I tend to build them with little side play.
The inside curve of the double slip looks quite tight as well. Could you ease the whole layout so the platform headshunt is nearer the corner ?
Although it's nice to have all locos reaching all parts of a layout but something like this places a restriction on the loco (as in the prototype) which can add to operational interest. A G6, O2 or Well tank should suffice.
Stu I understand that but I am try not to cut the station building, which needs about 250mm including canopy. The double slip will be a single, just for the run round. I pressed the wrong button.