HI geoffgeoffp
You can post as many pics as you like ig you host them elsewhere and link to them here - try using flickr or a blogging service like tumblr, then grab the direct link to the image file and post it into your thread here.
nice pics by the way. there is a similar, although now derelict version of this on the thames at Gravesend that I've been to a few times. The SE corner has some fascinating place hasnt it.
L.