One of the coolest computers I have (three of these now) is the Kaypro II. The first of the three, which I will showcase here, came to me via a local classified ad for $50CAD. The original CP/M disk and a small collection of other software disks, such as WordStar, came along with the machine.
The computer worked except for a few important flaws. The keyboard was dead, but thankfully that was just a bad cord. The RS232 port was dead due to a dead baud rate generator chip. It was very difficult to source the correct baud generator as some variants are custom made for unusual baud rates rather than the standard offerings which were used in the Kaypro and so many other machines with Z80 chipsets.