Long shot but who know, anyone know where I can source a large Stainless Steele Teppanyaki Griddle
that can sit on top of an induction cook top, it can be 80-90cm and sit over the whole cook top
something similar to this just the plate
https://cookndine.com.au/built-in-teppanyaki-grills/
Sounds like something that would have weird hotspots all over it due to different burner sizes
https://www.aegaustralia.com.au/cooking/kitchenware/a9kl1/
Doesn't cover the whole stovetop, but might be one of your best bets