A few key points.
1 Take an "adult" with you to look at it
2 If it smells "musty" walk away
3 Fabric...press it gently with a finger tip; if it forms a ring, walk away
4 On gliders this age, the trailer is the most important thing.
5 Rigging is easy, but the centre section is a bit heavy . ( not as bad a a kestrel wing root though)
6 Flying.Stable, easy to teach yourself cloud flying, has the usual slingsby nod at the top of a winch launch, just release the back pressure. Dosent soar as well as a K8, but will outglide same.
For your first glider, if the price is right, you will have bags of fun for little money. Will get you your silver C.
Have FUN