I bought a GM8 w/DSC shortly after purchasing everything for this project and it has been sitting in a box for nearly a year in this state.
All parts, components, and pdf documentation to build and operate an MG1 DSC computer. Eeprom for MG3 computer-telescope interface included. The pcb was purchased from the designer (David Lane) populated and tested as an MG3. No further assembly was performed.
$125 shipped CONUS.