Tips for engine removal

Here is the plan. I'm having the original 225 slant 6 rebuilt. Right now I have the 1968 225 slant 6 in the car. I want to swap out engines. I have read some put the car on ramps some don't what is the easiest way I can get this engine out and the new engine in. I will rent a cherry picker to remove and place in the dart. Any help or suggestions would be greatly appreciated.

Thanks to all that answer.