to start welcome ppl here are helpful but cant tell you what are good sounding speakers and amps cause its your ears not ours just to let you know in advance hehe

ok not much room to play with your trunk unless you use it all 2 12" would fit fine and i dont think that 600$ for kickers l5 or l7 is enough cause i think they run at around that price well the l7 anyway

the boxes are made with MDF 3/4 inch or thicker OR fiberglass

amp buy used from this site they have some kick ass stuff for your budget range cause new good amps you wont have 1500watt to 2000

wires go big now BIG 3 in 0 gauge and if possible 1 gauge or 0 to the rear dont screw with the smaller stuff its gonna cost you in the long run

speakers ask for reliable brands get awnsers and go check em out yourself you have to decide on that one lol

hope this helps a bit and good luck bud putting it all together is the fun part
battery ppl say oddesey optima yellow i run a maximum fx works great

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Big box installer (Timmins)
02 GRAND CARAVAN SPORT
I change my mind like i change my underwear lol

new system coming.
-CD7200MKII runing active
-2x RF400-4
-3 set of energy components. 2 front 1 rear
-4x energy 10" subs
-DDSS1 curently have
-Monster cable RCA and wires all over
-2 1/0 to DDSS1 and 4 gauge to each RF amps
-new alternator 160amps
-sound deadning