1 of 3 images that I drew up, based on the lift bracket my Dad welded up for me. It fits perfectly over the standard motorcycle jack we all likely have, and takes most of the weight off the oil pan. These measurements and associated photos in this gallery should make it easy to fab locally.
Thanks for the drawing.
I work in the office of a large structural steel fabrication company so should have no trouble getting this made brought one of those bike lifters a few years ago but this will help me out. Cheers Chris