*coughs* RFTools because screw instabilityMystcraft is probably a good solution. Make some random ages, find and empty the library + hidden chest (note the coordinates), make a new age, go to the coordinates, loot the library, repeat until you get the iron ore page.
I made a world that has iron ore spheres, and it isn't that bad debuff-wise (only mining fatigue).
Molten Iron lakes, with Iron Block terrain gen... and just for the giggles, iron golems naturally spawning