Replacing the glass only on the iPhone 4/4s was hard enough. The note II is much more difficult. It's bonded differently than models in the past and separating the LCD from the digitizer is much more complex.
You could take on the repair from the information on youtube video but I wouldn't recommend if it's your first rodeo.
The best option would probably be to sell the broken LCD screen to a company that specializes in that type of repair or a local repair shop that might have the experience. Instead of having the entire cost of a new LCD assembly (Note II are towards the $200 range) you could buy a new one and sell your bad old one.