I had initially thought that we'd just meet to get to know each other first, then arrange to meet to hear gear, but of course we could do it all in one go.
I'm in Lewisham, on the edge of Blackheath in SE London. If there aren't tooooo many people (which I think there probably won't be) I could host at my home - it's the other end of London to some of you I know, but it means less having to get a space, less worrying about noise, it's comfortable, easy parking if you drive. Just an option...
As for kit, I've a Fostex T20v2, some '80s 600ohm dt990s and my main amp now is an 80's Cyrus One, which beat out my Heed for my use. I've a few other bits and pieces - not much to offer, but I'm happy to help however I can.