Note: I make a living selling kites.
However, I need to agree with posts here - a 6 year old kite is way to old for your 1st kite. The main issue being, kite design has progressed immeasurably over that time and you will only frustrate your learning and development using out of date gear, from any brand.
However, if you do want quick advice on buying used:
1) Cost of used kites (imo) goes down 50% per year assuming the kite is in fantastic condition. By this I mean, next year the kite is worth 50% less and then the year after yet again 50% less (25% of initial cost) and the year after 50% less again (12.5% of original cost)... etc, etc - so you can see by year 6 the kite is getting to be about what someone else said - maybe $100 with bar and lines.
2) Stick to 1-2 year old gear bought from an experienced kiter. This means the gear not only will have been abused less but it was also likely better looked after as the experience means less trashing of the kite on missed tricks and more attuned eyes on the kite for potential problems, fixed before they get out of hand
3) Buying relatively newer used gear also has the advantage of allowing you to better research the type of kite you're buying. As a new kiter you will want a jack of all trades kite. Something like our
Prodigy kite or similar from other brands. Stay away from the dedicated freestyle kites that are more demanding to fly - you want a predictable, fun, stable kite to let you develop quickly.
4) Totally agree with the bar comment above too... bars take the brunt of the abuse in used gear. Moving parts need to be replaced or maintained to prevent breakdown on the water. Look for trim lines that are frayed or worn, lines that are whipped out, faded or have knots in them and plastic that looks sun faded or brittle. Consider buying a new or like new bar and line set for whatever kite you buy - it is your control set and your life line when on the water, take it seriously.
Best of luck. If you have questions, feel free to PM me.
John Z ~ OR