Visited a while ago, nothing left much, but one mystery remains - where was the control bunker:
The Site Now - nothing much left:

A WW2 RAF photo of the site - details at the bottom:
After a bit of PhotoShopping, some details emerge:
The Site Boundary is in
red dotsThe
red arrows show groups of fire baskets (pic below)
The
Green dot shows where I suspect the control bunker was, buried on the river side of the railway embankment; there is some concrete there, the right size, it is the top of something, right place, right thickness, nothing has sat on top of it, all it needs is a shovel !
It's even the right type of concrete ( MoD )