Stupid Headlight

I noticed driving in the dark that the drivers side headlight was lower than the passenger one. so I was unbolting it and the upper "fin" where the headlight fits onto and then gets pushed back is broken! there's about 3 1/2 inches missing of it. it doesn't look like this is going to be an easy fix cause it looks like everything there is one piece mold.

suggestions, help??

to help clarify...what i mean about the fin it's the what the top and bottom pieces that the headlight gets slide on to to hold the headlight in position.