
You've asked some questions I can't answer. Personally, I'm not a big aftermarket HID kit fan. I see too many potential problems, but you might get the look. My first choice would be factory Xenons, my second choice would be a factory Xenons retrofit. You can purchase a set of NEW, factory, SLK light assemblies off eBay for $1299, plus shipping, installation, and StarDiagnostic coding. Here's a link from this forum for some great HID information that should help answer some of your questions.
http://www.slkworld.com/general-modi...-tutorial.html