hows it goin? (if im in the wrong spot already please move me to the right place mods)

i just bought burly's 20" gorrilla apes and would love some advice on how long of braided cables i need. my neighbor is doing all the wiring for me( 20yr harley tech) but i want to have everything ready for him so i'm not waisting time in his shop when he could be having real customers there. i'm slapping these puppies on my 04 road king police bike if that helps anyone at all. thanks for the help if u have it!