For Sale: 56cm Alu/Carbon Condor Road Bike, Campag groupset, Vento Wheels

I am in the market, but have no idea what I'm looking at/for. Treat me gently.
The main thing is that it looks pretty sweet, which is what makes me go faster...

Couple of silly questions:

Why only 2 chainrings? Will I not need a further 3rd smaller chain set for the steepest part (14%)?

If the bike is 5 ish years old, how much life is left in the components? (From my limited knowledge they look quite a good spec, but how long are they expected to last/how much use have they had?)

Like Pifko says, if you want a granny gear, which you probably won't need you are best off buying a new cassette. A whole new campag chorus chainset would set you back a few hundred.

There's tons of life left in all the components. The only thing I would consider changing any time soon would be the chain or the cables, and they are both fine at the moment anyway. The groupset is a pretty high spec, which if you were to buy new now you would be looking at around £700