The pack i'm working on is to slow progression down a little bit. But the pack is not meant to be to hard but require more effort. I will be hosting a server to test on as well but that's gonna be later. Ill add more info later, if you are interested let me know. You can find me on discord more often. 
I'm currently using "Efab" and "CraftTweaker" to change recipes.
Link: Discord
I'm currently using "Efab" and "CraftTweaker" to change recipes.
Link: Discord