I used a carburetor mount for the lift. The rear end put up on jack stands and slide the floor jack just under the side of the car where the transmission will be, but not far enough in to interfere with the trans when you lower it. Get a packing blanket and put it over the core support and also cover the inner fenders.
You can cant the engine and lift the tail shaft over the core support. Even at the extreme angle you'll have to be careful with the tail housing and contact with the firewall.
When you get it over and back you can position the engine over the mounts, position the floor jack under the end of the tail and raise it and lower the engine down on the saddles slowly. You can pass the bolts through and then jack up the transmission and put the cross member and mount in.