Looks like some good info here:
https://forum.ih8mud.com/threads/another-fj62-rough-idle-thread.1250777/
Have you done any of the engine diagnostic tests? Just wondering if that would point you towards O2 sensor, etc…...
Looks like tough to find 62 specific ones. Several mention generic and modifying to suit.
I see this option, but can’t speak to it:
https://www.orikawa.net/product-page/fj62-center-console?srsltid=AfmBOorGSCY5eg27t3bA_jvHPSxa8KxT4mwhk2pBBEOt5OGP-sOWmGda
Nik