I've just been reading on the other forum that David Tatham is running an event this year, and it's kinda soon, details below (as much as I've got).
Harvey Road Primary School
WD3 3BN
16th October 2022
These events usually open around 10 a.m., so I'm guessing this will be the same.
I'll try and get their, but trains on a Sunday can be tricky.