has SUPERLEGGERA III FORGED listed for the MKIV golf with 8x18 and 8,5x18.
They also have it listed for the 2000+ celica in 8x18 fitment.
So you can get superleggera's. I'm guessing the 8,5x18's for the golf is either 30 or 35 offset. And that will also fit your celica.