Make sure you get some help for this bit. My mate Steve came up and lent a hand. He was the one who talked me into getting the Caterham so it was only fair!
You´ll need crane, which I hired from a local tool shop for about 40 quid. You can buy them for around 200 quid, but I figured unlikely I would need it again. I also got a load leveller which proved very useful in changing the angle of the engine.
Once fitted, you´ll need to do the heater and catch tank, radiator and plumbing and electric. The plumbing and electric is worth taking your time over as it is critical to a IVA pass (apparently) and also good to keep things neat.