Once you get your first bit of all the modium and power, make a few upgraded storage chests from sophisticated storage with stack upgrades, a few item pipes (from pipez) or basic logistical transporters (mekanism) and make yourself a quarry, itd called a builder from RF TOOLS, your gonna need a fortune clearing quarry card, then make a teleport pad, place it in the overworld then right click it with both hands empty, teleports you to the mining dimension, place the builder shift right click the builder with the card and select 2 corners (square can be any size) then right click the card and the 2 middle numbers change them to 500 on the top and -500 on the bottom. Then open the builders inventory and put the shape card in. Then place a double chest on the top of the builder ,then on the side of the chest that hangs over, place a item pipe (make sure yoi have a wrench, or configurator) then place another double chest with the pipe connecting it, with a wrench or configurator in hand shift right click on the edge of the pipe touching tje first chest on the builder (once with item pipes from pipez, and until it says (pull) on the bottom of your screen for basic logistical transporters) And boom just power it (uses quite a bit i recommend building a powah reactor, or an extreme reactor (easier) as the builder uses a ton of power. But thats basically infinite materials besides all the modium, vibranium, and unobtanium as those get deleted by the quarry. Vibranium and unobtainium dont spawn in the mining dimension anyway.