Firebird Fixed headlights?

Trade it in for the most similar available 2000 Camaro.

Seriously, a little Googling and following a link (well, cutting and pasting it, 'cause it didn't go directly to where it looked like it did) let to

Since it's your question, you ought to be searching yourself, in case there's something either better or cheaper, and to read some reviews by people that have tried it/them/whatever. I used the search terms

firebird OR "trans am" fixed headlights

although you may have better luck with something else.

I still think it's almost sacrilege, but sacrilege seems to be something a lot of folks want treated as perfectly normal these days. Whatever.