8-bit computer (HX2)

Hi, I'm looking for an old 8-bit computer, it may be damaged. In the first version of my project, it is intended to be used to visualize what it was like to work on such computers in the past, what it could do, and what the difference is compared to modern computers. If I receive a damaged unit and the repair fails, inside will be mounted a laptop parts or Pi with an emulator. Thank You. Voy.