C55 Wiper blades and Fog Lamps???
 

I am struggling to find replacement Fog Lamps for my '05 C55. The dealer wants $171 each for the assembly, and I know they are just Hella assemblies that I should be able to buy directly from Hella or a distributor for less. I'll do my own installation.
Q1: Do any of you know the correct part number for the assembly?

Q2: Is there a replacement for just the lens itself?
Q3: Where can I get the 3M protective lens covering once I replace them, in order to help avoid breaking again?

Q4: I need to replace my wiper blades, which look very much like Bosch Icons, but the auto parts store does not show them to be a match. I really want the new beam style like the Icons, but need to make sure I get the right ones. Can anyone please tell me which blades I need?

Thanks for any assistance you can provide.