Hey,
I thought about an idea for a member requirement.
Since most players are using Steam Furnaces / Mortars for gettings items due the really slow speed of the Steam Macerators, the real goal for pre LV is getting Steel Ingots within Steam Age.
So in that case you get 3 quests in the Multiblock Goals Tab section to craft BBFs = Bricked Blast Furnace and I think this could be the ideal member requirement.
Quest 1 ID: #76 "Time to get some steel"
Quest 2 & 3 ID: #697 / 698 "2x steel / 4x steel" are fully optional but highly recommended.
On that point I suggest #76 as a requirement. Along this way, the player crafted steam machines already, got a feeling for the "automation" and gets the role close to LV as a motivation push if you say so.
Tier 0 - It Begins
Tier 0.5 - Stone Age
Tier 1 - Steam (Member requirement here)
Tier 2 - 32 EU (LV)
You guys could use basic Steam Machines as a requirement, but I think this would be more interesting, because the player will feel the small grind in the pack due the BBFs already. 🙂