@lewm So if the MC2000 you have indeed has the factory stylus, do you have any idea of hours? The cartridge is now pushing 40 years old. Ortofon states their diamonds start to show wear at 1000 hours and are definitely done at 1800 hours. If you are at the end of the lifespan, what would you do for a replacement diamond?
@rauliruegas If I had a MC2000 that had a damaged cantilever I would consider a refurbishment with boron. But in the case of my cartridge I would not replace the OEM aluminum cantilever, there are getting to be fewer and fewer of these cartridges in good working order. In my case I have the Ortofon case,box, headshell, screw drivers, scale, stylus brush, bolt container, graphs, and even lapel pin that came with the original purchase. I also have the T2000 transformer, box, and paperwork. So having a complete original combination is of value to me, and having the MC2000 restored to as close as OEM condition as possible makes the most sense.
If I find a body that is a good candidate for surgery, then I would do it.