Can the Egg maker do fully evolved pokemon?

I’m wanting to do a custom egg Locke and I’m using the egg maker, but the theme of my nuzlocke is divergent evolutions, mostly so I’m not raising the same Pokémon multiple times, can the egg maker generate fully evolved Pokémon that just start at level 1? or can i change the dex number of the pokemon in the text file the game creates? would this cause any issues?