The switch is fine, but higher value pots and a trs jack are needed.Yea it should fit in there just fine. Now keep in mind, you're switching from passive to actives. You have to change out the pots, jack, and I think the switch too but I could be wrong on the switch.
The EMG's will definitely help....especially with those pinch harmonics! I'm one of those people that hears a sound in EMG's that I don't like and I'm starting to believe it's the exact tone EMG fans love.To be specific I was looking into putting in An EMG 81/85 set to get some Zakk tone. Anyone do this? Are installing higher value pots and trs jacks a big job for a guitar shop?