I like the Metal Machine EZX a lot! Bt within Superior Drummer itself there are also very good Metal presets, the Metal Foundry SZX is great as well!I'm typically using the metal preset and tweaking it to my liking, while mixing and matching cymbals from other packs.
Then I would keep the GT1030 in the build list.
That GT1030 GPU has three screen outputs? Is that standard nowadays?