oi dave post up a piccy of the back of your engine block.
think i've found an alternative driveshaft solution for you, haveing a sort out and found the last 2 equal length driveshaft kits hideing away allong with some tasty shafts.
makes both shafts the same length as the short shaft so less torque steer and there pritty much unbrakeable iirc they were garanteed upto 500 bhp / 500 ftlbs with lsd and slicks