It is not a hard swap at all to do. If your using the S13 Silvia parts its basically a bolt on affair. Just unbolt your pieces and bolt on the silvia parts. As for the headlights if you've got the two upright radiator supports its really easy to do. You won't have to fabricate anything and you can do it all in a few hours. The headlights just plug in to your factory wiring so you don't even have to change that.