There are different ways of doing the scoring I suppose.
For example, both ore and oil just take one step (miner or pumpjack), but clearly oil is harder to get. How much harder, is map dependent and subjective to skills. Advanced oil also has complexity issues with buffering and pipe layout.
Visualize on KirckMcdonald's calc is useful, but not very numerical.
https://kirkmcdonald.github.io/calc.htm ... 3:p3:p3:p3
If someone has a link to something better, that'd be great.
Simplest is just looking at the production chain.
eg, from the top of my head:
Ground = 0
Raw = 1 (ground + 1) #ore, coal
Plates = 2 (Raw + 1) #3 I guess if you don't use electric furnaces, but I use 2 here because of relative complexity to oil
BaseComponent = 3 (Plates + 1) # Base components are gear, wire, stick, steel
GC = 6 (Wire + Plate + 1)
Petro = 3 (oil + water + 1)
LightOil = 3 (oil + water + 1)
SolidFuel = 4 (Petro + 1)
Plastic = 5 (Coal + Petro + 1)
Sulfur = 5 (Petro + Raw + 1)
Acid = 9 (Sulfur + Plates + Raw + 1)
RC = 15 (Wire + GC + Plastic + 1)
BC = 31 (GC + RC + Acid + 1)
SpeedModule = 22 (GC + RC + 1)
RCU = 54 (SM + BC + 1)
Jetfuel = 8 (SolidFuel + LightOil + 1)
LDS = 11 (plastic + steel + plates + 1)
..
In this case it *sort of* helps numerically measure relative complexity for RCU versus Jetfuel versus LDS. As always: YMMV.