I started to restore old NeXT Cube after such a long time. Current,
  o Keyboard broken down
  o HDD crached
  o Display had done its term of service (aka 8000 hours display)
The Cube goes to only ROM monitor with poor contrast. I don't need
to by NeXT's original display which has a short life and I will
buy NeXTDimension board with VGA display for PC. By today
  o Got a NeXTDimension board from the Yahoo! auction in Japan (\50,000-)
  o Got a Non ADB Keyboard from a shop (\9,800)
  o Got a SoundBox from a shop (\12,800)
After I will get
  o 13W3 to VGA cable or adapter
then I will try boot and install NeXTSTEP3.3J with my old SCSI HDD and
SCSI CD Drive.