You're routing two more humbuckers into a RG2610E? Seriously? Why not just sell it and get something else? I know you asked a pickup question, but 1 hum/1 vol guitars have their place, and that place isn't really to be routed to kingdom come

Are you planning 3 hums, 1 vol and no switch?
If you love the neck get a new body pre-routed and start from scratch. I wouldn't route that guitar.
jim