Hmm, I didn't get a chance to check the MB this morning before work, but I'll bet Adamantite Nuggets, Aurum Regis Nuggets, Chimerical Felt, and Amphiptere Leather will all be spiking in value due to Red Scrips. If this is the case on your server, some desynths which might give you positive profit margins at dSkill 180:

LTW:
  • Serpentskin Hunting Belt of Scouting/Striking or Serpentskin Voyager's Belt of Maiming (r148) (all 3 are identical and bought from Repository Node for 11,880, desynths into 1x Adamantite Nugget, 1-2x Amphiptere Leather, or 1-3x BC2 (equal chance of each), or rarely 1x CD3 (Clear Demi 3)) (last I checked, profit on that for my server was, on average, 5k per desynth)
  • Serpentskin Tights of Casting (r150) (bought from the Repository Node for 17,820, desynths into 1-2x Amphiptere Leather, 1-2x Chimerical Felt, 1x Crawler Silk, or 1-3x BC2 (equalish chance of each, with BC2s more common), or rarely 1x CD3) (last I checked, profit on that for my server was, on average, 4k per desynth)
  • Serpentskin Satchel Belt of Healing (r148) (bought from the Repository Node for 11,880, desynths into 1x Aurum Regis Nugget, 1-2x Amphiptere Leather, or 1-3x BC2 (equal chance of each), or rarely 1x CD3) (last I checked profit on that for my server was, on average, 6k per desynth)
All of these desynths also get you an Earth Cluster as a special bonus prize.

WVR:
  • Chimerical Felt Corset of Casting/Healing (r145) (bought from Idyllshire for 11,484, desynths into 1-2x Chimerical Felt, 1x Crawler Silk, or 1-3x BC2 (equal chance of each), or rarely 1x CD3) (I haven't run the profitability analysis of this, but it should be pretty good if felt is valuable)
  • Chimerical Felt Sash of Aiming (r148) (bought from the Repository Node for 11,484, identical drops as the corset above, but yields 1x Lightning Cluster instead of 1-2x Lightning Crystal + 1-2x Wind Crystal, and is slightly higher rlvl)
  • Chimerical Felt Breeches of Healing (r148) (bought from the Repository Node for 14,256, desynths into 1x Amphiptere Leather, 1-3x Chimerical Felt, 1x Crawler Silk, or 1-3x BC2 (with equalish chance, BC2s are a bit higher than the rest), or rarely 1x CD3) (this should be more profitable than the above IF Amphiptere Leather, Chimerical Felt, and Crawler Silk are all equally valuable. If Amphiptere Leather is less valuable than the other two, this is likely a worse option than the corsets, unless Chimerical Felt is comedically highly valued (like, 40k+ each))
Weaver has some options for getting the other mats, but I don't think they're likely to be as good. Chimerical Felt Coifs from the Repository Node, for instance, throw in an Aurum Regis Nugget as a drop option along with Crystal Glass. Crystal Glass might have a high value, as it did for a long time on my server, but it shouldn't. It's trivial to make, and only costs like 1k in mats, if that. Chimerical Felt Caps from Idyllshire are another option, involving drops of 1x Aurum Regis Nugget, 1x Titanium Ingot, or 1-2x Chimerical Felt. I don't see a good way for WVR to get Adamantite Nuggets though.

ARM:
  • Adamantite Tassets of Fending/Maiming (r145) (bought from Idyllshire for 11,484, desynths into 1-2x Adamantite Nugget, 1x Dragon Leather, or 1-3x BC2 (equal chance of each), or rarely 1x CD3) (I haven't done analysis on the profitability of this desynth)
(I can't find any other profitable-looking ones for ARM...)

GSM:
  • Aurum Regis Circlet of Healing (r150) (bought from the Repository Node for 18,711, desynths into 2x Aurum Regis Nugget, 1x Hardsilver Ingot, 1x Chimerical Felt, or 1-3x BC2s (equalish chance of each), or rarely 1x CD3) (This is only positive if Aurum Regis Nuggets spike)


I haven't looked at the other classes, but they're unlikely to be positive. You can't buy accessories at endgame, so CRP is mostly out, and the BSM items are all pretty expensive since they're all mainhands. Same with the ALC books.