changing headlights on 2000 S500

[dblzro00]

How do I? I can remove the two 8mm bolts holding the "unit" but then it looks like the front bumper has to come off in order to extract the "unit" with the bulbs in it.

Also, the two bulbs available have a huge price difference $20 and $120. Is the more expensive one that much better? I imagine to keep the "color" the same both right and left must match?