Hello, can anyone recommend a case for an Arduino Uno with emonTx Arduino Shield SMT attached?
Not sure if this is a bit late but you can try this one if you have a 3D printer or get someone who has to print it for you.
I tried to find one as well but came up empty. The later shields seem to have different sockets for the sensors so the slots in this are elongated to accommodate. Just drop the boards in on the four posts and snap the lid on.
That looks really great 
I’m actually connecting my Tx shield config to an ESP, the orientation of the FTDI means the ESP module sticks out the side!