I got to test out my table to day . It easily holds the weight of a 997 gt3 drivetrain. I use the big jack in front just help support the trans end. I do air cooled motors the same way. I use a jack under the trans mount to help angle the unit and get the shift shaft up into the body.
I used to have a big transmission jack like above, I sold it when I bought lifts and replaced it with an under lift trans jack, but that also looks like it would work really well. Never had a chance to try it on a p car .
I bought my lift table after my first 930 drop, they are heavier, have a ton more plumbing, and they always seem to want to tip to one side when on just a jack, so I upgraded to the table. It has worked really well for me
That motorcycle jack may just be better suited for doing the drop on jackstands however. When using a lift, all you need to do is get the shift shaft out of the body, then I just lift the car up, no worries about height clearances , and having to slide the power unit out