From what I understand G BOAB is far from being well cared for and is unfortunately in a pretty sorry state. It was originally intended that it would be put on display outside T5 but for various reasons this never happened and no one now seems to know what to do with it. Last I heard was that the interior had been completely stripped out and the paintwork was in a poor state (it may look good from a distance but I think close up it is a different story)