why would you want to buy them from that guy? they are expensive as hell....www.aandrmotorsport.com has them cheaply priced and they custom make each wiring harness so you dont burn up your stock harnessgo to ebay and search for xenonrider. search on here and you'll be sure to find tons of positive feedback about him.
i put my ballasts behind my windscreen as well
Expensive? They're about $50 to $100 cheaper than anybody else last time I checked.