Hi James, with the D Stock trains been withdrawn earier this year. Will they become Class 230 upgradable trains?
Wikipedia page: https://en.wikipedia.org/wiki/British_Rail_Class_230
Because of the number of other priorities at present, it is unlikely that I will have time to add new rolling stock as they become available any time soon. However, do feel free to have a go at these yourself. This would be a good starting project for you, as you do not need to alter the body shape of the D stock units.