I recently came back to Minecraft to and would love vanilla mc with just a SW resource pack. However, this seems strangely absent.
Firstly, I worked out how to change the language files so have renamed some of the mobs, tools and blocks (ores) into star wars ones.
I then realised that the excellent PureBDcraft has a lot of SW content which is just largely hidden away - various aliens for mobs, jawas, wookies, banthas, tuskan raiders etc. By swapping some of those textures around, I was able to make a vaguely SW vanilla mc.
For ref, SW universe has cows, pigs, sheep and chickens luckily!!
Where I'm stuck now is that I want to play on at least 1.14 because it has the pillagers (tuskans and banthas) but I need mods to change the mob behaviour, spawning and daylight damage etc.
I think I can do it with something like Custom NPCS but that is only 1.12
I've added SurvivalPlus Lightsabers mod for those weapons and it's 1.15