Looking good mate, I'd like to see where this gose, And progress made. Not may VR6 root superchargers out there. Quite a few differences between twin screw chargers, root chargers, and the more commonly used centrifugal chargers. Battery in boot in simple. Any 2, 1 or 0 guage wire will work fine as a long power wire. High end audio amp wire will work fine, or BMW wires as said before. Also put a 100amp fuse in there. Can use audio fuse holder, with correct 100amp fuse inside. Washer bottle can be removed, so long as you have a platic bottle in the cabin with water or screen wash in it,