I have a 416b that I need to change I bought from a left handed person and he was ok with it.. I it’s a 1996 model 416b Cat
They made a lot of differant controls for them It's possible local cat dealer might have a used set for what you want it's basicaly just changing the linkage we changed them by swapping the whole linkage out
Are you talking about the backhoe control pattern or something else? If it's just the backhoe controls, you might just have to swap some hoses. Have never of left handed backhoes.