Help finding a leak :(

[Robb12]

Still quite a 'noob' with all this but I'm learning so I'd like some help please. I know its the power-steering fluid, I just cant figure out where from, I'm usually able to identify where from just popping the hood, but not this time. I'm taking off the belly pan tomorrow in hopes of finding this leak so if anyone has any pointers, let me know, Thanks in advance!

[1NaudiA4]

check the hoses to the cooler, hose from the reservoir, pressure hose to rack, and the input shaft into the pump.

[Robb12]

well I figured out its that ribbed boot near the end of the steering rack near the front right wheel, it's torn in about three different spots. I was wondering if its possible to replace the boot rather than the entire steering rack?