I haven't done this particular chassis swap. On my '76 Series III 109 I had to mount an electric fan on the outside of the radiator for engine clearance. There was no room for the stock engine fan in the engine bay. I have the old Range Rover drive train (3.5L V-8 and LT 95 trans/transfer case combination with Fairy overdrive), so I have V-belt accessory drive, which also saves a little space between the engine and the radiator. All else fit in pretty good with some custom engine and trans mounts. I had no issues with the bulkhead, be super careful if you have to lengthen the chassis, even a 1/4 of and inch off, from side to side, will cause problems. Good luck...