At one end I blanked over the end window on each side and added a vent cut from an old A1 Models BR class 37 etch. In fact I think these had previously been used on the original version of my model of 'Jay' before I realised I had made it a little overscale.
On the end itself is another etched addition, I suspect that this is again A1 in origin, alongside an electrical connection from the railbus spares box.
Internally a cupboard has replace the seat at this end, complete with a kettle fashioned from Dapol and Knightwing leftovers.
It has been fun making these changes, and yes, there is something of a nostalgic tone to working with leftover kit parts and odd bits of etch...