soldering is the easiest thing to do, im 14 and ive installed the same thing on my strat

i put the blue in the bridge cus i prefer the sound(that doesnt take any soldering just taking the red and blue out then putting the in the different places)
anyway, all you have to do is put the pickguard in the hole and solder the trailing wires to the jack, oh yeah and one to the vibrato plate thing in the back of the guitar
no real skill required, just a little patience