Try calling Toyorama 712-0016. Another shop you can check is Celica, Aerodynamic and NGK (you can google the numbers).
When we overhauled our old 99 'Rolla 2E back in 2002, it cost me around 12K all-in, and that included the t-belt and tensioner bearing. You may want to consider changing your t-belt and water pump as well given you're already opening up the engine.