For me Endgame = building(well so is early and midgame, but endgame more so). So End game gear is the gear with the highest versatility, features and builders friendliness possible. I want creative style flight, invincibility(or near) against pesky mobs, auto feeding, water breathing, nightvision(for when it is dark but also for underwater) etc. I also want a minimum of hot bars tied up in tools, weapons and the like so I have room for more building materials, microblocks, carpenter's blocks and so on.
GravitySuite gives me all this:
- GraviChest with Quantum legs, helmet and boots(Quantum boots of the Traveller from Electro-magic Tools is preferred) gives me excellent mobility(creative flight, jump and sprint boost), auto feeding, night vision, water breathing, practically invincibility, curing of status effects and so on.
- The Advanced Diamond Drill gives me a "TiCo" Hammer, Excavator, Pickaxe and shovel in one tool with its different modes. It will also place any kind of torches(Vanilla, Tico, Magnum torches even ) in any inventory slot on right click with the Drill(ace for branch mining).
- The Vajra gives me an instant Pickaxe/Shovel/Axe/whatever that is golden when in creative style flight(it still breaks instantly when in flight, opposed to other mining solutions that are heavily slowed). Will also Silk Touch when right-clicked. Also works as a quite potent weapon(saves up a slot for a weapon).
- The Advanced and Ultimate Lappacks can be set to recharge your Chest armour(which in turn recharge your tools). With a little automation you can easily automate recharging these lappacks on the go, virtually extending your flight range and working time to infinite.
All I carry/need:
(from 1.6.4, but principle is the same)