It's a while ago now since I did mine but I do recall that I left the cooling system in place and full. I also took off the exhaust at the first downpipe joint, the gear linkage, clutch cable, etc. I had tall axle stands under the chassis side rails between the damper mounts and rear hoop.
I also undid the engine mounts, in fact I took them completely out and replaced with new ones,they get a tough life in a Europa. As I mentioned before I had the sump on a trolley jack which lets you push it up against the bulkhead.