The time I spent taking out the radiator was well spent, you have to drain it down anyway and it would need a spectacular engine crane to lift it over, so you would need a beam or some overhead device to get the clearance with the rad in place.
Also when you move the engine forward off the gearbox input shaft it usually goes with a bit of a jolt at the last bit , you could put a sheet of plywood in front of the radiator but manipulating the big lump of engine is much easier with the access you get through the front. In my picture you can see I used a small pull lift to tilt the engine this was a godsend when putting the engine back.
I also used some long bolts in the mountings , to help smooth removal and re alingnment when replacing but dont try and pull them up untill you know for sure the input shaft has entered the clutch plate or you could be in trouble.
Its also worth noting that you need to support the gearbox before spliting the assembly, the engine and the gearbox have only one pair of mounts each.