2013 900 XP4, My dealer tells me that the power steering is gone and he wants to replace it for $1800 + labor?

When you turn the key on the steering wheel turns all the way to the left?
If you unplug the lower connector you can drive it fine but without power steering.

Has anyone else had this problem? Any thoughts or ideas would be greatly appreciated.

If it truly is gone is there any chance of finding a good used one?

Has anyone replaced the factory power steering with an A/M kit?

Thanks for any advice or help you all can offer…

Bob