the only link we can give you is xpaintball links b/c they help support this site
http://www.xpaintball.com/spydpaingun.html here is some spyder guns
http://www.xpaintball.com/spydpirbar.html spyder barrels
http://www.xpaintball.com/spydpaingunp.html spyder upgrades
u wont need an electic hopper, despite what ne1 else tells u. u r a new player, and the 200 round hopper is perfectly fine cuz it feeds 8 bps (balls per second) which is faster than most newb players and faster than your mech maybe