yes.. they are all right..
and as gwen mentioned the key is planning.
you dont want to get some thing that will require daily feeding "all the time"
i frequently leave my tank for 2-3 days with no issues.
there is no general answer other than, yes its possible.
if you decide to proceed you just look a the corals and fish and there need, or you can even look at using an auto food dispense, which (if you get a quality one) can be very helpful..
the stuff on your list looks fine, and should be able to make periodic stretches without your care
