sr16ve swap

hi for a while ive been looking at importing an sr16ve from us or jpn to drop in my micra I know I need the mounts
but what else is there that I nees obv gear box but like looms and stuff and will it be just plug and play or will it all need wiring up I was gona go for the d16z honda engine as they are easy to come acroas but the thought of a 175bhp nissan engine hidden under my bonnet Is gona be a sight when its pulling away from unexpecting boy racers haha but its the hassel of geting hold of it as im in the uk tryed loojing around to see I its been done but only found a coplue of vids nothing special so any one got any pointers for me thanks