1) Yes, they will work fine.
2) Hard to say, but probably not a good idea. When learning a new skill, tangible results are important. ZDP-189 is a very hard steel which will require more time to produce results. I found sharpening ZDP to be somewhat frustrating at first, and I am hardly a novice. My problem seems to be the hard steel tricked me into using too much pressure on the stones because I couldn't feel the abrasion that I was used to. Once I lightened up, great results were not difficult to achieve, just time-consuming.
If you are patient enough, learning on ZDP might be a good idea, as it may keep you from developing bad habits. On the other hand, if you are easily frustrated or have a short attention span, I would suggest starting with something softer, like VG-10.