Hey friends! I've been playing acoustic for many years and I am looking at buying a cheap Ibanez Gio series to get my electric chops up. Someone's selling me their old guitar but they don't know what model it is! It's a dark blue Gio series, and on the back of the headstock the series number says: "GS09E028524". How do I work out what specific model this guitar is? And what specs is has? And if it's worth $150?