@somethingnicer ah good news! 
You could stay with 2 pickups and use a push pull as a pickup selector. But as you’ve gone back to your original plan, all good!

Hi @somethingnicer, I’m presuming you’ve drilled the hole for the switch, but not routed out the cavity for the switch and that’s what you’re wanting to do next?  You are pretty close to the edge. It’s not ideal, but if…   Read more»

Hi @boo, I’ve not built one myself, but there’s certainly PRS guitars factory made with FR bridges at 25″ scale. I don’t know if Gibson factory make them, but certainly seen LPs etc fitted with FR. I’ve also seen baritone…   Read more»