If I did restart I'd probably put it into a kind of manual "hard mode" by messing with configs... disabling mystcraft and quarries for sure, putting MFR in the TE recepie mode, disabling the auto spawner... Maybe, if i can, disable ore doubling too, so that I'd actually have to use some of those kooky 1: 2 and one ninth production chains rather than just pulverizing into two dusts and smelting the dusts right off the bat.
Rouge like dungeons is always fun, though they take SO long to clear out lol
Rather than killing the ore doubling, you could half or even quarter the ore spawn frequency in the cofh configs. You can also put your own handicaps on yourself like "no automated mining until X" like I did. Much more enjoyable that way. I didnt have automining until after I setup autocrafting, which was only after making a power core (40 res energy cells) which is only after making an enderlilly farm of 32 plants or larger, which is only after making an mfr farm. Gosh I set a lot of handicaps for myself on the fly this time...