Yes mate, that’s the feeling. This mode gives meaning to everything you can do in this game! Every step, every choice, every pebble flipped along the way. Can it be done? Oh yeah! Adoomgod did it. I’m almost done (100% self found, untwinked, from scratch). I believe it’s even possible to do this without using any epic or legendary items, and without Tier 3 devotions. But that might be bordering insanity, haha.
Anyhow, good luck in your endeavour! Don’t give up! May the essence of Grim Dawn be with you!