Is this a far price for some 6000k H8 Bulbs for my TLS?

http://www.xenoneyes.com/index.php?page=hidkits

 

is putting HID headlights difficult to do on a TL? because the dealership raped my wallet when one of my headlights went out and I need to figure out if installing them myself is easy.

Note: I don't know a shit load about cars, so when I say easy, I mean fairly easy not like expert easy.