Thanks Adam F. I think I am not far away from doing it myself now.

Yesterday I called three Toyota stealers in my area. I was just curious about how much they charge for the service. Holy Cow! I got two exact quotes from two of the three stealers. The higher one is $786 (timing belt, water pump, and drive belts). The lower one is $710 (timing belt and water pump). The third stealer representative only gave me the quote on timing belt change for $289.99, then I was re-directed to one of their technicians for water pump quote. The line was busy... :

2000 4Runner 4WD SR5 V6 Auto 16x8 Chrome Wheel, 265/70/R16 BridgeStone Duelers A/T All Terran
2009 Toyota Sienna LE V6 FWD