Also, I'm looking for a quality Drk spellcast script. One that changes TP/WS sets based on buffs (uses less haste in TP phase when getting embrava or Marches with Last Resort up, etc).
Are you looking for an xml that just has such sets, or one that automatically switches between them based on buffs? I ask because Spellcast/AutoExec aren't able to discern the presence of a second, identical buff. As such, the first march would trigger your full-buffs set and it wouldn't revert back to your normal 25/26% haste set unless both marches wore off. There are manual workarounds for this issue if you're so inclined.
Anyway, I was fooling around with DRK sets a few days ago so I actually have some relevant sets on hand:
This is actually 52% PDT, I was just exploring maximum PDT options for DRK while maintaining Shadow Mantle and Nocturnus Helm. With Jingang Greaves (since you probably don't have Phorcys yet) or Rheic Shoes +1/2/3 you'd still be at 50/51%.
MDT: If you're getting full potency Shellra V (Sheltered Ring/Cleric's Pantaloons +2) then Engulfer Cape/Nocturnus Mail/Shadow Ring/DRing/Ogier's Helm/Twilight Torque is your best option for inventory conservation while maximizing absorption/nullification and capping MDT. 25% for a completely NQ Shell V requires two items since the rest of your slots are 2-3% MDT, Ogier's Leggings being preferable given their additional INT and MDB. If you don't have Noct Mail (could have sworn you did but I don't see them in your gear history), Mekira Meikogai works too.
This is technically your best dark magic skill build:
but you may consider forgoing some of those items (harness -> Twilight Mail for instance) for inventory's sake. Why? Well, even with full merits that build only puts you at 498 skill unless Aesir Torque's latent is active. As such you're 2 skill short of the next Endark tier outside of Darksday. You would lose potency on Drain/Aspir though, for what it's worth. Crimson/BFGs and Pavor Gauntlets are next best option in the hand slot. If you don't have dark skill merits you'd need all of these items to break into your highest damage tier.
EDIT: Excelsis/Hirudenia for Drain/Aspir. Note that NQ and HQ Demon's Harness have the same dark skill+5.