i would personally go for the ibanez style wiring and use a 5 way if possible as the position with the inner coil of the MM and another pickup sounds absolutely amazing.
There is a chart for this on the bkp main site
it also gives you good options.
I especially like the neck parrallel mode
You would need to order the neck pickup with the magnet flipped though in order to keep it hum cancelling in all positions.
Another option which is less destructive would be to use push pull pots for the different switching options.
Both of these save you having to drill your guitar
Hmm.. that does seem tricky indeed - how does this push/pull thing work, i guess you invert the phasing orso? - Either way, don't you need some kind of switch equipped to go from humbucker to single coil.
I would really love to have following to switch between and in that way I'd be needing 3 switches with 3 stages each.
1) a. Neck, b. Both neck and bridge, c. Bridge (as normal)
2) a. left neck single, b. neck humbucker, c. right neck single
3) a. left bridge single, b. bridge humbucker, c. right bridge single
having a 5 way switch, is usually a bad idea for me personally, since I always stress out and smash the switch to the neck position when going for a descending appergios etc etc, and that never worked out well for me in my ibanez RG ;) - In this way at least i'd be able to switch to the humbucker from single coil midway when not using it (when playing in the bridge position) and then I'll be able to smash away without caring much for whether I'm gonna land in single coil neck or humbucker neck... anyway... is it even at all possible, and would i be needing different magnet replacements for that? - I was going to order from dv247.com but they only seem to have one kind of the cold sweat and miracle man.
thanks