That kit you got is the right one Axe.....the only reason I used the single coil version is becasue that is all they offered at the time. I just took an old humbucker...ripped half of it off....and epoxied the single coil sustainer element back in place....and dropped it in. Sounds like a mess, but actually looks perfect.
As far as the wires.....I can't really remember, I just followed the directions and it worked perfectly.
After you get it installed the first thing you will notice after hearing it.......a lot of people use these things when recording! Also it has 3 modes of operation.....it will sustain the note exactly, or force the note to a harmonic of it, or a combination of both. It's also kind of nice just to add a slight touch of sustain to sort of just stretch out the notes. Another thing it can do is sustain perfectly clean notes.....you can do some strange things with that effect.
Watch the Soul Sirkus vidoes from their website. Neal Schon has a Les Paul with a sustainer and a Floyd Rose....now that's an unusual guitar that seems to work well for him!