I've done it, too.
Few basic tools, plenty of cable ties and take your time.
Think of the satisfaction you'll get when you can say "I did that!". Be doing your own servicing next.
Thanks lads did it before on another gs but this set up looks way to bulky the head of the bulb is 25mms even though it supposed to be a h1 and to many wires might do a tractor not impressed.