For anyone wishing to build their own electronic-emulation Enigma, please visit the web site of
http://www.xat.nl/enigma-e/faq/index.htm . Besides providing a full description of the kit plus ordering information, there is lots of additional Enigma information and links. The kit comes as a circuit board plus parts only but the vendor provides instructions for building a wooden case plus bezels for the lampboard amd keyboard.
Enigma-E Building Kit (Photo courtesy of www.xat.nl/enigma-e/faq/index.htm)