I have a pair of Judith Edge Ruston 48DSs on my workbench, one for myself and one for another RMWeb member.   The kit comes complete apart from paint and pick-ups, something unusual for a loco kit but very welcome in my mind.   The main etch is shown below;     This covers all of the main variations of the class, apart from n.g. versions, having alternative cab sides and bufferbeams as well as windows, early locos had square framed widows, on later locos the corners were rounded off.