So in order I think:
Should be complete list now, anyone can confirm combination order? 3 first steps I have cheked...
1. Nanite Reconstruction Box - Uncle Bazzit's Shop Meetmedere (Confirmed)
2. Hacked Floorplan - Hacker Tool + Floorplan - Clan(Omni-Tek Confirmed) Swimming Pool = Hacked Floorplan (Info: Kraized)
3. Nanite Reconstruction Toilerbots: Abies Grandis. - Embalmer - Cha'Khaz, Sector 28 (Info: Moonsorrow) (QUESS: S42)
4. Peridotite - Vortexx (Info: Raggeh)
5. Nanite Reconstruction ToilerBots: Betula Pendula - S13 (Info: Flimsee)
6. Essence of Eucalyptus - CoH (Info: Bluemax)
7. Thermal Radiation Unit - Albtraum Keeper of Tortured Souls (Info: crude4gone)
8. a Metal Grate - Foremans T.I.M and Director. (Info: NotDavidBowi)
9. Inorganic Crystalline Oxide Tiles - DB2 (info: Surm-ffs)
10. Nanite Reconstruction ToilerBots: Thuja Plicata - normal mobs in S35 (Info: Scabadus) OR Sector 42 (Info: Candice)
11. a Copper Pail - TOTW Curator, Nematet, Guardian of Tomorrow and Azzy (Info: Klint)
12. a Copper Ladle - Mitaar (Info: Nesjamag)
13. a Mercury Vapor Excitation Globe - IS 3rd floor last 3 bosses (Info: Piranhaz)(Confirmed)
14. a Wall-Mounted Titanium Rod - Subway (Info: Sorhan)(Confirmed)
15. Mercury-Based Temperature Gauge - s10 gen (Info: Dantra)
16. a Dual-Core Psychrometer - DB1 (Info: Surm-ffs)
17. a Gofle-Hair Brush - Alappa - Reprogrammed Mezzorash (Info: lonewof28)
I think it's complete list..
Based on them from being dungeons and "raid" locations:
Locations this far:
Subway
TOTW
Foremans
Coh
IS
DB-1
DB-2
Vortexx
Mitaar
APF S10 S13 S28 S35 S42
Alappaa
Albatraum