I have a 60"x60" BCAMCNC fiber laser, 2k watts. Unfortunately, it comes with hard to use and harder to understand Chinese software, Au3tech SC2000.
How hard would it be for me to convert to Lightburn software?
Probably not possible - LightBurn isn’t currently capable of controlling fiber cutting laser systems. The control is also unsupported, and is unlikely to be in the near future.