Okay then, I set it to 5, haven't tried 'em out yet, though.
I put in Nicpon's Ancient Dwarven Fuck The World stone layer, and slag, which is effectively just melted metal from aforementioned Fuck The World maneuver. I made it appear as large clusters, and gave it a smelter reaction to give it a low chance of turning into a bar of pretty much any metal. I would've made it an ore of all those metals, but I was pretty sure it would have caused a Tetrahedrite-into-billon style bug which would be excessively exploitable. It turned out as even more exploitable: It doesn't actually require any slag to refine to make the bars.
Here are the additional entries I put in:
Another trapcomp, the beehive!
[ITEM_TRAPCOMP:ITEM_TRAPCOMP_BEEEES]
[NAME:beehive:beehives]
[DAMAGE:20:GORE]
[WEIGHT:10]
[HITS:20]
[MATERIAL_SIZE:1]
[WOOD]
Ashstone, the new layer:
[MATGLOSS_STONE:DWARVEN_SOLUTION]
[NAME:ashstone][COLOR:O:7:1][TILE:176]
[IGNEOUS_EXTRUSIVE]
The various things I decided to put into it:
[MATGLOSS_STONE:ELF_MUMMY]
[NAME:preserved elf][COLOR:7:7:1][TILE:'E']
[ENVIRONMENT_SPEC:DWARVEN_SOLUTION:CLUSTER_SMALL:100]
[VALUE:10]
[MATGLOSS_STONE:DWARF_MUMMY]
[NAME:preserved dwarf][COLOR:7:7:1][TILE:1]
[ENVIRONMENT_SPEC:DWARVEN_SOLUTION:CLUSTER_ONE:100]
[VALUE:15]
[MATGLOSS_STONE:ELEPHANT_MUMMY]
[NAME:preserved elephant][COLOR:0:7:1][TILE:'E']
[ENVIRONMENT_SPEC:DWARVEN_SOLUTION:CLUSTER_ONE:100]
[VALUE:15]
[MATGLOSS_STONE:GOBLIN_MUMMY]
[NAME:preserved goblin][COLOR:0:7:1][TILE:'g']
[ENVIRONMENT_SPEC:DWARVEN_SOLUTION:CLUSTER_SMALL:100]
[VALUE:10]
[MATGLOSS_STONE:ANCIENT_SLAG]
[NAME:slag][COLOR:4:7:0][TILE:'%']
[ENVIRONMENT_SPEC:DWARVEN_SOLUTION:CLUSTER:100]
[VALUE:3]
The slag reaction:
[REACTION:REFINE_SLAG]
[NAME:refine slag]
[SMELTER]
[REAGENT:1:STONE:NO_SUBTYPE:ANCIENT_SLAG]
[PRODUCT:10:1:BAR:NO_SUBTYPE:METAL:LEAD]
[PRODUCT:2:1:BAR:NO_SUBTYPE:METAL:ALUMINUM]
[PRODUCT:4:1:BAR:NO_SUBTYPE:METAL:IRON]
[PRODUCT:10:1:BAR:NO_SUBTYPE:METAL:ZINC]
[PRODUCT:10:1:BAR:NO_SUBTYPE:METAL:NICKEL]
[PRODUCT:2:1:BAR:NO_SUBTYPE:METAL:GOLD]
[PRODUCT:10:1:BAR:NO_SUBTYPE:METAL:COPPER]
[PRODUCT:2:1:BAR:NO_SUBTYPE:METAL:SILVER]
[PRODUCT:8:1:BAR:NO_SUBTYPE:METAL:TIN]
++EDIT++
Forgot to mention that I made petrified wood appear in it too, and does anyone know how to make a stone economic, other than making it an ore?
++++RE-EDIT++++
Y'know what? I'm just going to put ores in small clusters and single tiles in the slag, and not bother with all this reaction crap.
Unless someone comes up with another good idea, this is getting finished soon, and I reckon I might make a succession game with it.