I believe any "tutorial" on changing strings on a Floyd Rose will work for you. However, since you're using a string gauge heavier than it originally had and also detuning, you probably will need to either tighten the springs or add another spring.
If this is the first time you're putting strings on a Floyd Rose, I'd suggest getting a good cup of coffee or can of coke 'cause you may be spending a lot of time putting the strings on and setting it up.
If this is the first time you're putting strings on a Floyd Rose, I'd suggest getting a good cup of coffee or can of coke 'cause you may be spending a lot of time putting the strings on and setting it up.