Certus Quartz is dificult to obtain but seems to be quite enhanced with the fortune enchantment (which I find quite silly if we are aimed to be dressed in power armor tools).
Giving some feedback on the mod, I have a small server with its controller, an ME drive with some drives, an acces terminal and an IO interface.
The maintenance of the server is quite cheap, as you only require energy to interact with it (and with some closed-loop steam engines is pretty easy). I've even manage to feed the whole system with the server thanks an IO interface, a buildcraft pipe circuit and some redstone engines to push the wood around, so the input circuit is never empty but never gets overwhelmed. This way you can also separate the harvester/planter/sawmill circuit, having the overproduction of wood storaged and ready for your acces.
The costs of crafting, of course, is overwhelming. The dependance on cestus quartz is too heavy to have a large system and the cables are too expensive for what's worth (the best way is to do extend the network vertically and rely of buildcraft pipes for the item movement.
Lastly on the mod, the grinder is a life-saver, specially when starting up. It's a nice way to have a Tier0 pulverizer.
Finally, for the OP. I had the same feeling when I started. The bundle of mods is overwhelming and chaotic. Even more with some minor bugs. Despite that, is very playable. I've been studying and mastering each mod one by one.
My recommendation would be:
- Forget about galacticcraft and dimensional doors for the moment : they don't provide anything, specially starting (maybe dimensional, but it's to tedious and time-consuming).
- Study TE: They are swapping IC2 (with it's gaps, but it works). Setting up is a little bit harsh but you will get there eventually.
- Apply Minefactory: Magma engines closed systems aren't required, they are easy to set but the deployment costs are far superior than the steam ones. With the seconds you don't require going to the nether and the materials are easily obtainable.
- Use invar: Armor and equipment works as diamond while being far more easy to obtain and craft. Also you will want to spare the diamonds.
- Close the loop with applied energeticist: Once you have a nice working base, AE would help managing stocks, specially for the bigg ass miner harrasing the landscape. It can also work sideways, giving the crap to the filler in order to refill the hole.
- Become an Ironman: When everything is running, become proggressively a god by implementing upgrades to the suit of power suits.