Re: What we need
Why? The originals are still going strong. I've got three of them, plus a cheese wedge co-pro, so I can play Elite Executive Edition :-)
There was also an Arm 1 cheese wedge that went on fleabay a year or two ago, for a little over four grand.
Mine can also read a FAT 32 USB stick and has compact flash cards that mimick winchester drives, courtesy of Retro Computers. Nip over to StarDot - https://stardot.org.uk/forums/ - for BBC goodness :-)