Is the pickup selector hole on a LP the same size as the pot holes? The reason i'm asking is that I'm going to build a 3 humbucker LP with your typical 3 way switch on the upper bout, 3 volumes (one for each pickup), and a switch to engage the middle pickup, which will be a humbucker sized P90. Also anyone know where i can get a switch the size of your pickup selector toggle thats just a 2 position on/off switch?