This is not an answer to your question, but I can't resist, especially with community wiki, pointing you to a (in my novice opinion) good translation of GAGA [here](https://web.archive.org/web/20180728222951/http://ms.mcmaster.ca/~arnoldt/Serre-GAGA.dvi) by my former office mate Trevor. He probably knows if there is a FAC translation, but he is not on MO. You can try to email him.