First of all, congrats to that beautiful guitar!
You got the positions 1, 3 and 5 right.
I understand you wanted the other two to be both slug coils and both screw coils. To change that from the wiring you have right now involves rewiring one of the pickups but before you do that we need to make sure that we do not have to flip the magnet first in order to get these positions humcancelling.
Do you get more hum in positions 2 and 4 compared to the other positions? If yes, that is good because we would then only need a fairly simple rewiring. If not, the same rewiring would lead to hum in the positions 2 and 4.
However, if you mentioned to BKP that the pickups went into this guitar I would expect that they considered the magnetic orientation of the set.
We would also need to know how the pickups are wired right now - I suppose red of each to hot, black of each to ground and green/white to the split terminal, right?
Cheers Stephan