MorningBird said..
CYCA is great but might cost a lot. RANSA might have a mooring available near shore.
Balmain, Birkenhead west of the bridge would be very good, especially the latter with shops, cafes etc at your door.
CYC is not as expensive as you may think I have found it very competitive.
Edgecliff shopping centre is very close.
You are also walking distance to the city.