I managed to squize ballast and igniter within the headlight housing (under back cover).
Here are the pictures to compare stock halogen to 6000k Hid.
Although light patterns look different - its normal due to safety reasons and not due to messed up headlights. I did before and after and patterns are the same, just brighter.
Also, camera was in the automatic mode, so the color is not exactly spot on, but you can clearly see the difference it made. yep, its h7 and you only need one set for low-beam installation. High beams will stay functional. btw, low beam is the top bulb.