1992 Mazda Navajo system decisions (a little help?)

[asheppard308]

Hello guys, just to start off, i'm obviously new to the forums. I just recently got my license and my dad handed down the ole Stump Stomper to me. I have at my disposal a JVC KS-AX3002 amp i picked up from a thrift shop for $25. The truck has a Kenwood KDC-319 HU. 2 6x8" front component speakers of an unknown brand (he can't remember what they are) and no rear speakers. I have 2 options for a "system." I have two JVC 8" woofers rated for 170 watt RMS 8 ohm subs, and a Cerwin Vega RE-30 300(?) watt 12" sub. i listen to mainly very heavy, fast metal (think Braindrill, Decapitated, Cannibal Corpse, etc..). I'm curious on what you guys think i should do ( i have to build boxes for the speakers, so this is all the equipment i have to work with)

THANK YOU

[asheppard308]

shameless bump.