Script targetting all npcs only once

[6maniman303]

Hey! I'm new to modding community, especially to scripting, I'm making a mod that changes players or few specific npcs body model to, for example, CBBE, but not only body model is changed - armor and outfit are changed too. For now I made it possible to craft custom 'mod' in workbench for outfits and armors that change model from standard to CBBE, and a script that automatically attach this mod to outfit when you take it from corpse or something. But adding new models to outfits resulted npcs not displaying outift model - to fix that bug it is needed to use command "resurrect" on npc. Becouse I wont resurrect all npcs in game, I would like to make a script that would auto resurrect all LIVING npcs at start of the game and only once. The problem is I have no idea how to even begin writing of this script. I would appreciate any help, links etc