I put series 2 bluebird engine and 5 speed in my wifes old sunny, had to drop the gearbox mounts 40mm from original. I made up some bolt on adapters out of 40mm square tube. I also squeezed in the bluebird cross member with the steering rack. It was a race car so no inspections required but the 5 speed did fit.
a great conversion though, heaps of torque!!