The trusty Hot Rock still seams popular despite all that is said about hard points.
For those who are interested, here is a drawing that I produced with Marvin Denny's assistance for his version of the Hot Rock handle.
It is sized so that you print it on ANSI C (17" x 22") or A2 paper. Just tell the PDF reader to print full size and centred on the page in either of those paper sizes and you will have all the required info.