(25 Aug 2021, 11:01 pm)peter wrote There's enough Streetdecks to make up the PVR of the X45/46 tho

My prediction
Chester-le-Street
6043-6048 for the 25 
6308-6314/34 for the X21 - 6335 as spare
6315-6330 for the 21 - 6301/6331 as spare

Consett
6302-6306 for the 47/47A - 6064 as spare
6056-6063 for the 16/16A - 6069/70 as spare
6065-6068 for the X5/X15
6341-6351 for the X30/31/70/71/72 - 6339/40 as spare
6332/33/56-62 for the X45/6/7 - 6336/8 as spare

Deptford
6088-6097 for the 56 - 6098/99 as spares

Hexham
6352-55 for the X84/5 - 6337 as spare
6071-6076 for the 10 - 6049 as spare

Percy Main
6102-6117 for the 309/10/11 - 6100/01 as spares

Riverside 
6002-7/6051-55 for the 27 - 6001/50 as spares
6077-6085 for the 10A/10B - 6086/87 as spare
6149-6154 for the 58
6155-6161 for the 93/94

Washington
6363-6374 for the X1 - 6376/77 as spares

None of 6338-40 can be spares for the X30's & X70's if they're covered by the bike guarantee unless GNE are planning a bike rack retrofit? And I doubt GNE would suddenly downgrade the X5 / X15 as that's the major Consett to Durham trunk route. The PVR for 56 is also 11 too and not 10.