Farm Equipment is tied to a the owner's key. Objects must be owned by an owner to be validated against licenses. This means owners have to do updates or rez stalls due to how sl rights work for scripts.
I propose to grant the farm manager the same rights as the owner of the farm. In the case of a long absence of the owner of the farm from the network, managers could perform the functions of the owner, including with the update of stalls and other objects of the farm. This will allow you to quickly update farm objects