stripping a patina Duster hood

so this morning i went out to the hood and the evaporust soaked paper towels were all rust stained, i removed the paper towels and the plastic sheets and scrubbed the hood with a red scotchbrite pad and 90% of the rust came out of the pits... i put new paper towels down and soaked them again for another round of evaporust, i will then follow up with the Ospho.... ive heard many ways to neutralize the ospho from the FABO family and im getting a little scared and overwhelmed that i wont neutralize correctly.. please one last time ... what is the best fool proof way to do this step, i dont want any issues with my epoxy...Rich