American Muslim man marrying in Tunisia

I have looked at the US Embassy site and it says I need

1: Passport

2: Birth Certificate

3: Affidavit of eligibility to marry

4: Prenuptial marriage Certificate

to marry a Tunisian but I get on reddit or here and hear other things smh....

Do my birth certificate need to be within 20 days from the date of marriage? If I do, should i get my birth certificate before I get on the flight there and how to schedule date of marriage before the expiration of Birth Certificate?

Do I need to get my birth certificate translated into French or Arabic? If I do, Should it be notarized by that person or at the embassy? Should the translation be apostille stamped?

Do I need extras copies of passport and birth certificate?

What's a place or doctor office that has the fastest turn around on prenuptial marriage Certificate or which one just signing it without the test for the money?

Btw I already have notarial appointment with embassy and I only can spend two weeks there. Ive met her family before and they're pretty easy going and her dad approved of us getting married.