Did you think about using the omega r28 gearbox and bellhousing?
Yes, but it has the same bellhousing bolt pattern so wouldn't gain me anything, and they aren't renowned for their strength. The saab 2.3 engine is a torquey lump even before its tuned.
Plus this modified bmw box came up at a bargain price with a lot of other drivetrain bits, and it's bullet proof.