Thank you for that, now on order from Amazon.
The EE shunters used to deliver the concrete trains to Northenden, I can remember watching one shunting at the yard, but I don't know from which direction they came ie Edgeley Jc or Tiviot Dale which might have a bearing on which shed they belonged too (but then I'm pretty sure 9B didn't have any of the EE shunters). I can also remember a Black 5 doing the same.
Regards