A little more work this evening, the sides have been tidied up and glued to the roof along with fitting the cab end.  The raised panel on one side was added with 10thou plasticard and a grill cut from a pikestuff door.  
I have also removed all of the roof detail, I think I’m right in saying that it had rovac vents fitted instead of the old style ones.  A new NRM roof pod has been glued in place along with the new cab side windows.  It’s now ready for a coat of primer which will show up how good a job I’ve made of the sides…

The end still needs the missing steps at the bottom adding, along with working out a solution for the numerous spotlights and the boxes for the head / tail lights.