Hi I have an older model of the daystate x2 sports, the one before they were fit with pressure gauges. It's in immaculate condition and hardly used complete with bsa sweet 17 sights. As I haven't been on the shooting scene for years I'm just wondering how much would one of these be worth, and is it a good air rifle to start shooting with again at beginner level. Ie I dont have much time for deep maintenance and servicing I know these rifles need. Thanks.