the fosgate amps are ok ,not what they used to be 10 years ago tho .the efficiency isnt there anymore like the old school amps tho .if yu are dead set on the fosgate amp then thats cool ,but better and more power amps can be had if you look around .also the subs are ehhh at best .the sundowns ,xfl, dc, tantrics ,and spl audio subs are way better and cost less .as for the wiring that will depend on your amp ,there are some amps that are very efficient and the only thing you'll need is the big 3 and a better battery down the road .i could give you some prices ,but i'm not allowed in this type of discussion ,so send me a pm and i can give you some suggestions of what to look at and some links ,and then maybe some prices .