Honestly the tortillas are the easiest part, the dough is easy to work with and not messy, as long as you have a tortilla press it only adds around 20 min to the total cook time.
Maybe you could freeze them? I haven’t tried it, but I know they get moldy after like 24 hours if you try to make them ahead of time.
Yeah, in researching recipes, they’re about 50/50 for and against adding fat. The hardliners say never to add fat as it’s unnecessary, but others say add some lard or butter to increase the pliability. The ones I made are still fairly pliable, they have a crackly surface but don’t actually crack or tear when folded.