How to install a push-pull for out-of-phase effect in a PRS SE Custom 24?

[davidrf]

Hi there, I just bought a brand new 2016 PRS SE Custom 24 (NGD thread: http://forums.prsguitars.com/threads/ngd-my-first-prs-a-prs-se-custom-24-tobacco-sunburst.19215/) and I'd like to add a push-pull control in the volume knob to put the pickups out-of-phase. I had this modification in a LTD EC-1000 and it sounded awesome.

I usually go to my luthier for this kind of works, but he will be on vacation for the whole month of august! Therefore, I'd like to try it myself. Fact is, I never did anything similar. So:

1) What switch should I buy?
2) Where can I find some schematics for the out-of-phase wiring?
3) Any extra advice?

Thanks a lot!

 

[Dusty Chalk]

I'd send it to the PTC to do, but they might take a while, too.

 

[davidrf]

I'd send it to the PTC to do, but they might take a while, too.

I'm not from the U.S. so that solution is not viable