Ok need some design advise for my 70

[Hottrucks]

heres what I plan feel free to jump in tell me I'm full of it or I'm on the right track I have to refoam my seat so while the frame is stripped I plan to do a little fitting
I would like to put 1 sub in the middle with (2) 6x9's facing forward from under the seat..I'm hoping to build the box from wood and fiberglass.....

in the front I'm going to form a box to sit in the corner of the floor (under the e brake).I also have a center console with (2) 5 1/4" ....

amps would be put in the jack locations


for music I'm kinda all over the board from eric clapton ( you can leave your hat on...to crazy itch ..to blues...I just want something clean with a good thump

Heres what I have to work with

head unit Kenwood ...KDC MP 238

amps
KENWOOD ...KAC 921
HARDON.....CA260

hope you guys can help me out with maybe some size and Ideas

thanx
Jeff