Minecraft Immersive Engineering 1.12 Tutorial (Overview/Getting Started) 

I believe its jei or just enough items

its called just enough items its a mod

i think "one probe"

i dont think there is a 1.12 file but there is a 1.16 1.15 .14

If you go into curse forge, u can check the Files page, then view all files and set the version your looking for to 1.12. I’ve got it for 1.12.2