Harmar chair-type stair lift. Model SL300. Hardly used.
It was purchased for my mom and she didn't use it much unless she was tired or feeling sick. She died a little over a year after it was purchased and has been sitting unused for about twelve months. It still works fine. (I tested it today before taking it apart and moving it to the garage).
Original cost two years ago was $3,395. New ones are selling for more today.
The rail is cut for standard fourteen-stair straight staircase in a modern home. (see photos). I assume it can be cut shorter if needed, but you'd need to know your way around tools.
Partially disassembled. Rail is currently in one piece, but it probably can be separated in the middle for transport. There is a clear seam there and it know it came in two pieces and was put together on-site.
I can answer questions about how it was taken apart but it was professionally installed, and I do not have any wisdom to share about the assembly.