Anyone know about these stands?

I was looking for info on a tilter that I saw years ago at the Atlantic City car show. The seller rented a car and drove it onto the convention center floor, removed the battery, jacked up front tire and removed it (bolted on a jig) and did the same for the rear tire. Then using a standard electric drill drove a long threaded rod to tilt the car over onto its side. I think he was selling them for $600.

In my Google searches, I found these homemade jigs that the guy used on a Mustang. Anyone do anything like either of these things?