I answered your other thread about the intake system.
NGK Coppers can be had for plugs
http://www.ninjaperformance.com/ngk-...et-p-1863.html
MSD wires
http://www.ninjaperformance.com/msd-...ohc-p-832.html
Cone filter was answered in the intake thread as well
You want to replace additional things to the water pump and timing belt.
Ninja sells the OEM 60k kit for $470 once you add the idler pulley
http://www.ninjaperformance.com/mits...hc-p-2123.html
You could try to piece some of the things out. The only non OEM parts I would go with would be Gates water pump and Gates timing belt. I'd stick with OEM tensioner and OEM pulleys though.