Hello John, you are an historic of Enterprise....
We are in a shortage of SD-readers, as Szorg seems to not produce them any more. I hope somebody could design a substitute soon....
Enterprise units surface every now an then on Ebay, but at high prices. Talk to Zozo.
When you have your working unit you can buy an EXDOS compact controller from pear in this same web, even an
EnterMice if you want a Boxsoft compatible mouse adapter. There are a lot of applications that use it, for example
SymbOS.
To the EXDOS controller you can attach easily a floppy emulator(HXD, Gotek) if you also don't want to manage disks.
There are other add-ons available just now, but exceed the "basic" settings, like a bus expander or an I/O MSX cartridge adapter.
About the Scart cable you can order it
here.
I think like you, better the real thing...
