I had a similar dilema when I first planned on buying a Model S. I live in an apartment complex with a semi-large outside parking lot and near-zero electricity wiring near my spot. This is in a building that has had only DSL Internet speeds until recently.
Before getting a quote, I asked the manager to ask the owner for permission using Tesla's template letters available on their website. After one week, he granted permission to install it, as long as I paid the cost for installation and equipment. Shortly after that, I had multiple electricians come by to get me quotes. They were all $7k+. One quoted me around $3k to have a 120V outlet run to the nearest parking spot, provided that person agrees to trade spots with me. Needless to say, I decided not to have anything installed.
Now, I simply rely on a local supercharger near my work to charge once or twice per week while eating lunch at the mall's food court. No issues so far. It would've been really nice to be able to charge at home, but it was never a deal breaker. No charging rate limit on my Model 3 so far after ~6,500 miles.