Seeing as Harnaidan is a massive city, I do not have a map readily available. Think of it more conceptually; tell me where you want to go and you can go there, ask if a place exists and you can find out.
So far you have your points of interest- the San Hill Hotel, in which you are staying; the Central Bank of Muunilinst, which you want to rob; the Harnaidan Starport, where you arrived; and the area near the Starport where all the cantinas are located. The trolley can take you anywhere in the city.
Maybe you should consider your objectives again. Which one did you want to start on?
Then unfortunately you won't be able to simply spot things from the outside... or even the inside! What you will need is someone with prior knowledge of what the security system consists of. Not necessarily a criminal someone; the bank uses battle droids for security as far as you can tell, but you doubt that they are independently operated. Someone must control them and maintain the broadcast signal that allows them to function.