REMEMOrizer can be downloaded from
Of course, you can't download physical hardware, so if you want one
ready assembled, you'll need to visit the
Copying of the included VHDL is encouraged. The included ROMs either are the original ROMs from real Memotech computers, or are derived from them, and these images are readily available on the net already. Copying the included driver code is probably ok as it was derived from code developed by Memotech itself, long since defunct. Caveat Emptor.
The initial RAM Disc image includes parts of CP/M 2.2. CP/M is open source and is downloadable here and other places.
You can also download a PDF manual, courtesy of Dave Stevenson.
The author of REMEMOrizer and this documentation is Andy Key