https://www.bossmangames.co.uk/gwr-brw-4073-castle-class £19.99 or thereabouts. https://www.bossmangames.co.uk/gwr-brw-4073-castle-class
Also connected addons for GWR Siphon G vans £4.99 https://www.bossmangames.co.uk/gwr-siphon-g
Inspection Saloon £4.99 https://www.bossmangames.co.uk/gwr-inspection-saloon
GWR Hawksworth Coaches £11.99 https://www.bossmangames.co.uk/gwr-hawksworth-coaches