KETX

Hello I am in the USA trying to assist a family memeber in SL locate a ECU for a 2004 Corolla XLi. The car is a 5-speed manual transmission. The part# is 89666-12060. Can anyone please provide me with some guidance on how I can set about locating one? The dealer cost is insane and there is a long waiting period to get it. Any other options available? Thanks Kushan