Here are a few options that I've had somewhat to do with!
I know some outfits hire engine hoists. They have a large arm that sticks out from the top and two legs with wheels which roll under the vehicle (like a big C). You hook it on the engine and pump a jack mounted between the upright and the top arm which lifts it up then you simply pull it away from the vehicle. We used it on for a van once (they are hard work getting the engine up and out the side door).
My uncle has a unusual but simple frame made of three pipes which form a large tripod attached at the top with a chain hanging down to hook the engine on. I guess then you would lift the engine and push the vehicle back.
When I took my engine out (with the gearbox) I freed the gearbox and had it sitting on a trolly jack then with my brother to keep an eye on that, my dad and I lifted the front of the engine up and forward with the jack taking the weight of the back and trailing along until it got to the front crossmenber by then my brother came around and lifted it and we put it on the ground. Was quite simple but you would be needing a couple of people at least. I did manage to get the engine and box up on to a platform to work on myself but it took abit of lifting, twisting, supporting and thinking.
