for complete setup i wouldn't pay more than $350. Plan on rebuilding the calipers and re-powdercoating the calipers and brackets too. Make sure to get both the front hubs!!! Even if you do not use them, someone will want them, and will pay a decent amount for them if they are in good shape.
You will need:
Front calipers and brakets
front pads and rotors
rear rotors
you will need to get the rotors redrilled to accept the mark viii bolt pattern. I would suggest finding a machine shop that will do this before you buy because most shops do not want the liability.
You will need to either buy or make the relocation brackets for the rear caliper, which you will be reusing your stock caliper and bracket. The brackets are to accept the larger diameter rotor.
You do not need the calipers or brackets from the rear.