#2
yeah man, just unsolder the odl ones, solder the new oens in. it will onyl start to get a bit moe complex after u start doing coil tapping, 5 way selecting, active, killswitxches etc
#3
Well, the bridge positon should already have a humbucker-sized hole in it, but I'm not sure about the neck...I'm pretty sure it does. Just make sure you know what you're doing with the wire and you know how to solder-don't wanna waste $150, do ya?
#4
You'll have to get a new pickguard to fit them, in case that wasn't glaringly obvious. And yeah, the neck will be routed for a humbucker.