I am going to take what Gail said up a notch: it is utterly ridiculous for this client to ask you to set up their HA/DR stuff given that you have no experience/training doing it!! There is no WAY an untrained person can a) figure out what the client REALLY needs and b) get it properly set up and c) properly test it with regards to a new HA/DR implementation. This client is not just setting you up to fail, they are setting themselves up to LOSE THEIR COMPANY when things go south!! And yes, there are entities that WENT OUT OF BUSINESS because they didn't have good HA/DR (and some of them THOUGHT they did, but it wasn't done properly).

PLEASE try to get your client to engage a qualified individual to at least assist you in planning/implementing/testing this requirement!!

My $0.02, based on almost 2 decades of doing SQL Server work.