Nawatizing Hebrew proper names

On this page I talked in general about how I am transcribing Hebrew into the "English" alphabet in this blog when citing Hebrew words or passages. Here my subject is rather different: what to call people and places in Genesis with Hebrew names in my Nawat translation (and how to spell them). How do you say "Noah", "Joseph" or "Edom" in Nawat?

Given that I am engaged in the first translation of the Bible into the Nawat language and there is no previous native tradition (the church never adopted Nawat as a language of Christian worship), we have a tabula rasa regarding how to render the proper names of the Hebrew bible into Nawat. Now one option would be to work not from the original Hebrew forms of names that occur in the (Hebrew) text we are translating from, but rather from the shapes that have been given to those names by twenty centuries of (primarily Christian) transmission through European languages. Given that one particular European language, Spanish, is the dominant language of El Salvador, and hence also that of all forms of Christian presence in El Salvador, in practice this would mean adopting the Spanish forms of biblical names in Nawat: calling asher "Aser", efráyim "Efraín", esaw "Esaú", xanókh "Enoc", yitzxaq "Isaac", xawa "Eva", m'nashe "Manasés", naxor "Nacor", nóax "Noé", panuel "Fanuel", par‛o "Faraón", péretz "Fares", raxel "Raquel", r'uven "Rubén", shem "Sem", shet "Set", shim‛on "Simeón", s'dom "Sodoma", térax "Taré", ya‛aqov "Jacob", yarden "Jordán", yosef "José", y'huda "Judá", etc.