[J P Stein]

Regardless of what kind of cradle one has, it comes down to the stability of the jack you are using. The POS that I use will never see another engine drop (literally...BTDT). The disc rocks in it's bore and the wheels aren't far enough apart......your basic $90
Sears thingy. I even welded a 10 X 8 plate to the disc.....helped not at all.

The land battleship that J. Walker posted a pic of is what I really need, but can't justify the expense.

Gonna take a real hard look at the HF motorcycle widget.