[Shodo]

My list (for *any* amount) would be as follows:

1: White or Red Dragon Tooth - go to OT and summon your level 49 necro pet, level to 40 there. Pick an evil or neutral race (anything but high elf I think) so you can use the outpost to afk safely & bank all your spells.
2: Rod of Annihilation - start using this at 30+ in conjunction with pet's damage.
3: Tolapumj's Robe - for haste.
4: Pre-nerf fungi staff - so you don't die.
5: Jboots and/or SoW pots - so you don't die.
6: Oggok cleaver and a summoned muzzle of mardu for the pet, for uber damage.

The pet will eat half of your xp, but a level 49 pet can shred level 20-30 mobs so fast it won't matter.