There is no quick answer to this one without at least
some information about the circumstances where you are. It would be better if a technical survey were to be carried out. Only then could proper advice be offered.
However ... what is driving the
jackals? Are they only interested in making savings, or are you experiencing failings they aren't happy about (unable to recruit techs, behind with PM ...whatever)? Whatever the reason, you had better make it clear from the start that "savings" equals "reduced service"!
My own tendency has always been to cut to the chase, and home in on core activities. Namely:-
1) The condition of the equipment (is, and how, is the kit being maintained?)
2) The service provided (response times
etc.)
Everything else is incidental, in my opinion.
And if they want the kit maintained, and they want an in-house service (to be there to respond,
etc.), not only does it need to be adequately funded, but it's
their job to fund it!