If you want to properly do HIDs it will require a retro fit. Halogen projectors are slightly different then HID projectors.
Granted you could just swap in some bulbs and ballast in but out put won't be as good and you will get some unfocused light because of the bowl focal point.
For fogs you could just get yellow bulbs. It would be a lot cheaper. If you want HID in the fogs please do a projector retro fit so you don't blind everyone.
For low bean temp stay between 4300k to 5000k or you start losing output.