For the 'should stock mean Tier 1 adept difficulty?' question, you could perhaps add a note to the template mentioning that.
What I ended up doing was gathering the level 1 adept data, then converting that into a range. So, I gathered all the HP values for the default monsters, then put them on a graph to see what was low, normal, and high. Then I assigned each monster a Low, Medium, or High for their HP, Melee, and Ranged attack scores, since these scale with difficulty and level.
I'm not sure how to convey what I did in a simple manner to other people, or if there is an easier way.