@ghalfacree On my side of the pond it was the "Timex Sinclair1000", which I have a small collection of. My father bought me the first one. I've had an eBay alert running for several years once I discovered an actual keyboard manufactured especially for it (Memotech). in an old magazine ad. It was triggered once maybe ten years ago and I didn't win it. Grrrrr... Anything but those membrane keys. Please! lol. https://www.timexsinclair.com/product/memotech-keyboard/index.html Perhaps in your kit you've got some options available to you?