Brian,
I can see the kit allows for variations in Cab Doors and also the cabinets; does it cover the variation in the running plate?
Up to 08698 (D3865) the running plate had a lip at the top and a fillet that projects downwards at the rear end of the running plate to the
buffer beam, 08699 (D3866) onwards did not have either feature, the running plates were plain and had no fillet to the rear buffer beam.