ok, so I went on ibanez.com to look for wiring diagrams (I tried to last night before I posted this, but the site was down) and found a wiring diagram for an ibanez rg, it's very similar to how I want my guitar to be, the only difference is the pickup selector switch, I like positions 1, 2, 3, and 5 but how would I do it if I wanted position 4 to be both humbuckers, rather then the middle pickup and one coil from the bridge. here's the diagram.

I still have a question about what wire to use though, if i use shielded wire for everything, will it sound better then trying to use a mix of shielded wire in some places and unshielded in others?
and which is better, having a higher gauge (22AWG) or a lower? (18AWG)