Solo Melissan FMT - Need Advice!

I haven't had any trouble with any of the encounters but can't for the life of me kill Melissan at the very end of the game solo.

Here is the stats of my (pretty much wet dream best in slot) character:

Elven Dual Wield FMT (Capped) 18/17/22

++ Scimitar
++ Warhammer
++ Long Sword
+ Two Handed Sword
+++ Two Weapon Style

22 Str (25 Crom Faeyr)
20 Dex
19 Con
20 Int
11 Wis
11 Cha

Main Gear Set:
Crom Faeyr
Scarlet Ninja-To
Robe of Vecna
Amulet of Power
Gauntlets of Extraordinary Specialization
Helm of Balduran
Ring of Gaxx
Ring of Protection +3
Montolio's Cloak
Boots of Speed
Golden Girdle

146 HP
-6 AC
-12 MH THAC0
-10 OH THAC0
5 Base APR, 10 with imp haste


I have a ton of offweapons and items such as the beholder shield, simulacrum helmet, carsomyr +6 for sexy whirlwinds, etc.

Most of my HLA's are Time Stop traps, Greater Whirlwinds, and of course UAI so I can use Scarlet Ninja To, Carsomyr, Montolio's Cloak.

I can't seem to beat Melissan. My basic strat is traps (time) + simulacrum + haste + mirror image + stoneskin etc and that has lasted me all game but now I am stuck. I die way too quickly and can't get to the third guardians. Die in between the 2nd and third guardians.

What strategies can I use?

Thanks!!