This is how I made my transmission jack:
I work alone so I have to work smarter.
I bought a harbor freight transmission adapter for a floor jack. It has a steel peg out the bottom. So I just used a hole saw to cut a hole in the top of the arm of the cherry picker. To make sure the adapter does not come off I drilled and tapped a hole for a bolt to hold it down. In combination with the two post lift my cherry picker is now a versatile machine that does more than take up space. Some days I think of quitting my job and start rebuilding Mopar transmissions because this makes it so easy.

If this is not close up enough let me know.