Theorycraft Help with 5th Account

I am thinking of getting a 5th account for WotLK. But I now I'm thinking I should get the 5th sooner and use up RAF bonus on account 3 or 4.

Current Game Goals:

• 5-box PvE 5-man content, including Badge Gear / Heroic (doing)
• 5-box PvP BG content for Honor Gear (doing)
• 5-box PvP Arena for minimum weekly points (doing)
• 4-box PvP with 4 Shamans for higher rating gear. (working on it still)

WotLK Game Goals:

• 5-box PvE to 80 "the fastest way I can": Pally (tank) + 3 Shaman (1 healer) + 1 Mage (taxi/food).
• 5-box PvE to 80 different classes: Rogue, Priest (healer), Druid, Warrior, Pally (tank transferred)
• 5-box PvE to 80 with a Death Knight, boosted by an 80-Prot Tank.

Account 1:

• 70 Paladin (Holy Shock & Prot Gear) - Enchanting, Jewelcraft
  
• 70 Shaman (Elemental Gear) - Alchemy, Tailor (epic flyer)
• 70 Rogue (S1/S2 Gear) - Engineering, Herbalist
• 61 Mage - Tailor 350
• 2x 39 twinks, 4 mules.
  

Account 2:

• 70 Priest (No real Gear) - Enchanting, Alchemy (epic flyer)
• 70 Shaman (Elemental Gear) - Alchemy, Tailor (epic flyer)
• 60 Mage - Tailor 350
• 50 Paladin
• 1x 19, 1x 29, 1x 39 twinks, and 2x mules.
  

Account 3:

• 70 Paladin (Pve Tank, PvP Ret, PvP HolyShock Gear) - Enchanting, Blacksmithing (epic flyer)
• 53 Shaman
• 2x 19 twinks, 1x mule.
  

Account 4:

• 70 Warrior (PvP Arms Gear) - Mining, Blacksmithing (epic flyer)
• 70 Shaman (PvE Resto, PvP Resto/Elemental Gear) - Alchemy, Tailor (epic flyer)
• 1x mule
  

Account 5: Some ideas ???

Idea 1.

• Account 3 RAFs Account 5.
• Use Account 1 Paladin to power level Account 3 (Druid Healer) and Account 5 (Mage) from 1 level 1 to 60. (even without the 300% RAF bonus)
• Paladin in Account 3 gets a Zhevra.
• Account 5 Mage is 60, Gift +7 Level Ups to Account 3 Shaman.
• I would then have 1.Mage (61) 2.Mage (60) 3.Shaman (60) 4.? 5.Mage (60) to level to 70 in Outlands.