You can certainly put it on as I could successfully installed it at the end. You can buy any H7 HID kits but you also have to buy the base adapter. I bought PHILIPS H7 6000K Xenon 35W HID conversion kit. What you also have to buy is 2x H7 Xenon HID Bulb Base Adapter Holder. I found them on eBay and it was only around $5 or $6 from Hong Kong. These adapter holders will secure your HID bulbs and you won't need to cut or trim anything on your existing cables etc.
For the installation , I asked my local mechanic as I wasn't conformable to do this myself. You can even ask your local Toyota car service factory as my local Toyota service factory offered me to do so (of course you need to pay the labor cost).
At my local mechanic place, they had to remove the whole front bumper to install these HID kits. Because of the layout (battery) in Hybrid model, there wasn't enough space for the mechanic to carry out the installation. I also installed LED day light. If you are planning to do this, I recommend you should do all in once as they had to remove the front bumper. You will save the time and the money.
Good luck!