Stop in for a cup of coffee

I do have one. I still have to grunt it under the car because I don't have clearance enough even with the 6-ton jack stands... I slide it on a piece of plywood then set it onto the jack when I'm under the car to position it properly.

Poor design on the jack as it won't go flat enough
I have the same problem, can't get the car high enough and the last time I put it back in I did what you did and slid it under on cardboard then put 2 ratchet straps under the tranny 1 on the front and one on the back hooked the straps onto both frame rails and ratcheted it up. Worked pretty good and saved my back.