need help im taking hur under the saws all

ok fixen to bag the front so im fixen to have to cut the inner fender wells up front( jus baggin the front for now) my question is basicly im goin in blind folded. i know how to use a saw and im not a complete idiot but any advice on how to relocate stuff and how much to cut.. detailed pix would help.. plus im runnin z71's with 205/40/16s on em... is there any way i can keep the battery where it is?