I made a lifting pad with an 8ft. 2x12 and 2 trailer winches from Ebay.
I lift the bike up and set it on the 2 sawhorses.
I have 2 pipe clamps threaded on front ropes and clamp them on the upper fork tubes and this keeps the bike up straight.
I now set in the lawn chair and change the oil.
For me it's better than laying on the ground.