Is it possible for me to upgrade my Toyota Camry to a Smart Key System?

I have a 2012 Toyota Camry SE and I'm very thankful that my parents allowed me to have this as my first car since I'm commuting to my college classes. But the one thing that really annoys me is the fact that I have a physical turning key to turn the vehicle on. I know it's merely a cosmetic issue that isn't a big deal but I would like to have the convenience of keeping my key in my pocket without needing to fumble for it just to turn my car on. Is it possible for me to upgrade my Camry someday in the future to a smart key system? If so, how much would that cost and how long would it take to install it? If not, I don't mind. My Camry may not have all the bells and whistles (GPS, Apps, or Entune) but it's smart enough to work with my iPhone all the same.

How much do you want to spend? Should not be much different for a US model…

SX6… No can do (cheaply). This is what you would need:

1) The control ECU for the Smart Entry,
2) Receiver for the ECU (mounted on C-Pillar, and different to the standard one),
3) The push button switch,
4) New drivers side door handle,
5) New steering column (as it has a motorised lock assembly and no key tumbler)
6) At least one Smart Entry transponder key.

Don't ask me how much that will all cost. My best guess would be that you won't want to know.