Well, aside from the recent replicas there are still a few items left. The following has mods, but if you ask for also most expensive then there are few more items that can be added.
1. 30 HP Orc Chief Helm
2. Glorious Lady Shroud of Champion (Purple Shroud, 10 Phys, 5 Cold)
3. Butcher of Jhelom (Same stats as Crimson Cincture, you can wear over Crimson, full apron)
4. The Protector Shield (Heater Shield, Blessed, 100% durability, 15 DCI, 100 luck, Spell Chan no penalty, Self repair 5, 20 phsy resist, 10 fire resist)
5. Corrupted Heart Sheild (metal kite shield, Blessed, Self Repair 5, Hp Regen 4, Reflect Physical 20%, 16 phsyical resist, 20 poison resist, 20% lower requirement)
6. Lights Rampart
7. Blackrock Shield
8. Terathian Silk Skin Shirt (long sleeve shirt 4 resist in fire, posion, cold, and energy total 16 resistance)
9. Ithlesis Breast Plate (Green Dragon Scale Breast Plate but Neon, Blessed, +15 Necro, Night Sight, Mana regen 3, 150 Luck, 13/13/23/33 resistance)
10. Gladiator Chest
11. Gladiator Arms
12. Bane of Hylolth
13. Majooka Staff
14. Royal Guard Detective Sash 50 Luck
15. Royal Guard Boots 50 Luck
16. Santa Ring
17. Citidal Follower Gloves
18. Cebo Shroud (Teal Shroud, 10 Steal, 10 Stealth)
19. Bramul
20. Algid
21. Shadow Artillary
22. Brave Knight of Britannia Kantana no replica type
23. Jade Armband
24. Tongue of the Beast
25. Skin of Demon (cap, blessed, 12% SDI, 15/12/17/20/20)
26. Hide of Demon
27. Embrace of the Abyss
28. Heartwood Ceremony Staff
29. Shroud of Baal
30. Royal Explorer's Scrapper
31. Obi Di Ence Champion Version
32. Ithlesis Sting
33. Blood Pact
34. Ornate Encrusted Armsguards
35. Royal Guard Investigator Cloak (+20 Stealth)