If you intend flying together in the same airspace, I would second the matched pair suggestion.
However, if you are looking for the cheapest way to cover a wide wind range, then I would go with a full sale and a vented in the JB package. This gives you 1x 2wrap, 2x 3wrap and 1x 4wrap frames.
The vented should be good to go on the 2-wrap at about 8-10mph when the full sail will be very happy on the 3wrap. However, the flying characteristics are somewhat different. The vented will feel extremely precise and smooth, the full sail a little less forgiving and more prone to reacting to gusts.
Can't comment on race rods as I have never used them, but I would say that the people I fly with seem to use them a lot.
Just be warned, this is a very addictive form of kite to fly. I suppose they are a little like golf in that you can play but will always have room for improvement!