I'd probably get 3 fogs. The one driving light by itself wont do much; though you could get one of those Hellas that has an "inbetween" pattern, and a wide cone of driving light, but it doesn't go as far. I think you can get Hella 500s that the different patterns the lights still look the same.
As far as wiring goes, as long as it's 3 55W units you can probably just modify a 2 light wiring kit to run 3 (splice in an extra power and neg lead).
Oh, and I do like the idea of angling the side lights out a bit.