well about the price you bought these is i guess 400AED fi you bought 2 kits or 575AED if you bought one kit
so if he price was 575AED then it cost Galant_GDI 12075 so asking 12k if not used is also not bad but consider revising your price
other thing is that wither its German or chines
its better then the one's you get here yes even better then those AA quality ones