Hi emerald. Personally I don't think there's any "crash course" that could prep you enough to be able to handle a setup like that. As well, between tank, sump, sand, live rock, pumps, lighting, and all the other small things that are absolutely necessary for just the basics the budget is quite low. Even in the used market. Then with dealing with used equipment, it's just that. Used and unpredictable. Also, I would not recommend a fish in cycle in a
SW setup. Primarily because most of the inhabitants need an established system for their survival.
I know you're very gung-
ho about what you do as it's evident in seeing you're posts, and perhaps not what you want to hear, but not something I would try to take on
IMO. If they're willing to have a company come in for maintenance, they should have them do the setup as well.
Sent from my iPhone that doesn't like me. Or you !!