Too many potential hum problems!
The only thing out of the norm is 2 volumes, & 1 tone ONLY on the bridge. 3-way switch. Thanks!!
So after being concerned with hum, you're still going for 2 pickups that when selected by themselves will hum anyhow:scratchch
And then unless you do some jiggerypokery with one pickup all 3 positions will hum.
yes you move that wire from the bottom right to bottom left but you also need to move the wire that currently goes from the output jack to the tone pot to the bottom right tab on the switch. see what i mean?
yes, ignore the red/white wires.