Sounds too good to be true?
Partsouq.com is based in UAE, but even factoring in shipping still beats local price hands down. I'm a fan of shopping local but IMO Toyota has unreasonable markup.
Genuine Steering knuckle locally is $785.
(Price shown is $USD, all up $400AUD)
Easy to use to, full diagrams and photos of many of the parts too.
No affiliation, and have used them once only but will use them again. Ordered on a Sunday, arrived Friday.
Cheers
Crit