You can go give discount auto $5 and they will give you 4 plugs.
AE and PepBoys also carries NGK plugs.
Or i can sell you some used ones. They are all fine I`m sure i just like to change them like every couple of weeks. And no I`m not kidding i realy do have boxes of them laying around.
As for wires i would just get a set of NGK wires for $40. They are all the wire you will ever need.