No time wasted here!
I did a similar thing to a ´67 EB0 a while back - I did the early route but I´m not really sure what year the routing changed.
I did the narrow ctrl. spacing, correct for the year - the shielding in the ctrl. cavity is hole punched for both models,
so the spacing looks factory laid out.
In fact, i traced the early (1961 to 1965) wide control spacing, for my ´neck glue project´EB6, it´s a ´65 model
so i feel comfy with that. I love the wide spacing, although the upper knobs are quite close to the bridge.
It was a lot of routing, glueing and filling, but worth it, I think..
EDIT: when thinking of it, it is possible they changed the bridge pickup routing when they standardized the control cavity routing to fit both EB0 and EB3 in 1965. But the routing for the NECK pickup wire must have appeared somewhat later,
66 -67 perhaps? I have two 65 models - one with small ctr cavity rout, one with the big ´new´route. None of them
have neck pickup wire rout, which bot my 67´s got.