Put a Defender grill and hood on there so you can fit a 6BT in there!

If you are gonna put a 200tdi in without a turbo, you might as well just get a 2.5NA, They are dirt cheap, and you only need a hammer and a pair of fencing pliers to rebuild them! I carry a complete set of gaskets in my tool kit and could do a head gasket in 2 hours on the side of the road if I had to.