I have been reliably informed that the first extra bus to be used on the extended Charcoal Line service is now at Simon Morris in Ipswich for a repaint into the grey-fronted livery. The bus in question is Great Yarmouth's 36181 BF12KXU. It is thought that there will be a number of bus swaps over the coming month to accommodate the extra buses needed for the 41 and X41, with some heading from Norwich to the coast and others heading the other way. I'll keep you informed.
Left: 36181 at Caister Road in Great Yarmouth shortly after arriving from Leeds.