On a semi-related note, while answering a FOI for me, TfL mentioned withdrawn B92, 88, has been reactivated using parts from other withdrawn vehicles to be used for unloading and shunting of the new vehicles on delivery. TfL's quote attached.
To facilitate the unloading and movement of the new trains at the depot,
both Keolis Amey Docklands (KAD) and TfL’s project team have identified a
potential to convert the three B92 vehicles, currently unfit for Passenger
Services, into a single dedicated B92 shunting vehicle to assist with the
unloading and moving of the new fleet vehicles on delivery.
A single shunting vehicle was created from one of the three B92 vehicles
currently unsuitable for passenger service and stored at the Beckton
Depot. These 3 vehicles are: -
• Unit 039 (on a berthing road)
• Unit 098 (in the BN shed)
• Unit 088 (on the engineering sidings)
Unit 088 was converted into a dedicated shunting vehicle by utilising
parts from units 039 and 098. In addition to these parts, a Docklands
Light Railway Ltd (DLRL) free issue coupler adaptor was also supplied.
The estimated cost of undertaking this conversion was c. £21k against
other quotes that the project received for purchasing / hiring such a
vehicle being in excess of £100k.