Plains Biome
Single Biome
No Weather
Bright Lighting
Flat Terrain
East
Zenith
Normal Sun
East
Nadir
Dark Moon
East
Nadir
Dark Stars
--Rest Optional, but remember some pages like Dense Ore will add instability.
I'd recommend replacing Flat Terrain with Cave World and Plains with Mushroom Island (no mobs), that way you should start at a lower altitude so you'll start closer to the more valuable ores. Not quite sure if it's been changed, but you REALLY want Dense Ore, you could try adding a few "bad" pages like Charged/Scorched Surface to cancel out the instability caused by using Dense Ores, I recommend Charged/Scorched Surface because those wouldn't hurt you in a Cave World since you're not exposed to the sun.