Make sure you do your research on the Slee harness. From what i read in another post i will NOT be using it. Way to many problems.I recently paid 400 for a well used set. $550 for new sounds about right. Dont forget the extra $60 or so bucks for the conversion harness.
You can get all kinds of lightning solutions for that money. The Slee wiring harness makes it easy AND will eek out more from the stock headlights.