Hello sinetwo, no real designs to speak of, although considering I didn't order a Backplate or midplate for the planck, I thought about have a backplate cut in acrylic, from there I found a decent looking cnc cutter at razorlab.
Fun fact, they offer sheets of a fixed size, so to put it to better use, I added templates for a tkl, and 60% front plate, and a single hand of an ergodox, for later projects (didn't want to waste space).
I have my reservations regarding the materials, as I doubt a 3mm acrylic panel will offer much support. I haven't quite finished it, and might try to add holes for spacers.
As for soldering, I have only a little experience, and am using a rather cheap iron from amazon.
And a London meetup could be nice, I'd love any feedback