Scissor Steps determining how many steps you need

For the platform extending the bumper - look at my thread about Stow n'go,
I bought some material to iron the design, but since we enter in winter season, it is put on back schedule.
Will post some updates on the topic later on.
Coming to Flip's comment about the leveling attachment, I think it looks very ugly and as long as I can get away with small board for side leveling I will never have it.