Hey mate im no auto elec but i am a mechanic, have done the relocation in my 32 track car. If you want a hand im in blacktown area in sydney. Can come to you or you can come to my workshop (preferred) and we can fit it. Let me know via pm you can check my race car out and how i did that one see if that what you want You will also need to supply proper earth and power cable, you will need about 5-6m of positive cable and negative if you want them both connected to original position. Some U clips to secure the cable, and some short self tapping screws and 2 new battery terminals. Probably $100 worth of stuff there.
Saturdays are best for me at the shop as boss isnt in. Ill charge you a case of jack daniels and a helping hand will need to remove carpet, seats front and back to hide it properly possibly center console to.