There are many Rev flyers in your area. Stay tuned. I'm sure one or more of them will pop up here with suggestions. It would be good to get together with one or more of them so you can try some of the kites out before you decide what to get. We're a friendly bunch, and always happy to help out someone who's just getting into it.
The B-Pro Series kites are pricey; you may want something a bit less expensive to beat up while you are learning. If money is no object, just go for it. You can add kites and frames later that will fill in the gaps.
Understanding the reason for different frames for different wind conditions is fairly simple: stronger winds demand stronger frames. The differences in frame response times you will probably understand, but not be able to feel until you have at least mastered basic control of the kite.
There is much discussion of various frames and using hybrids of what is available, such as 3-wrap center spar with race frame ends, etc. If you have any experience with using a different frame than the original in dual-line kites, then all you need to know is that it translates almost directly to quad-line kites; where, when and how you want that spar to flex is something better left for later, however, getting a kite with two frames does increase the usable wind range. I'm in the Chicago area and our winds are a beast of a completely different color, so this is as specific as I'm going to get, and let the guys in your neck of the woods guide you further.