what are the biggest discs you can run under 18" rims? will 380mm go? If they do, could some traders please give me some prices on some grooved rotors and bells and brackets to fit a front 2wd cossie hub I already have the 6 pot callipers (cp 5555)

Also, how much for the brackets/bolts needed to fit a set of 330mm discs and cp5200 AP 4 pots to the rear? what are the handbrake options when doing this ?

cheers for any info/advice