Each of the kites needs minor repair work which you could easily do during the off-season with e.g. AirTime. I can even send the kites directly to AirTime and have them forward to you when done.
North Vegas 12m 2008 (blue). Kite has been used moderately. A few panels were wearing thin so I put some extra re-enforcing sail tape on it (in matching color, you will not notice). One of the struts needs a new valve (est. cost: $20-30)
North Vegas 10m 2008 (red). Kite has been used moderately. One of the struts needs a new valve (est. cost: $20-30)
North Vegas 9m 2011 (white). In good (if not very good condition). The main valve on the leading edge needs to be replaced (est. cost: $20-30).
If you buy the entire set: $800 (or $100 discount). This is ideal for someone who is getting into the sport: you will have a full quiver (= all winds) at minimal cost and not have to worry too much about banging them up during your first year. All these kites will fly with any North bar.
For what it’s worth, the kites have been taken good care of – no crashes, no sun exposure etc. I have been kiting for 10+ years and the only reason I am selling is because I treated myself to a complete 2013 set (same sizes).