I knocked this out yesterday and had great results. My Lowes didn't have the correct length M6x1.0 so I had to go with 30mm, which is fine.
I selected almost the exact same positions as OP, with a few cm further rearward for the back placements. All 4 corners required trimming of rocker plastic but it took just a minute or two with a sharp utility knife.
The front position has an existing cutout of the body colored plastic, but you'll need to trim the black plastic that's 'higher' up towards the floor. See PIc 4.
The rear position will require you to trim the body colored plastic. I went a few cm further rearward for these than OP, so I could make use of an existing cut where a tab was. See Pic 1&2.
The best part for me is that these positions are now perfect for use with my QuickJack 5000SLX and the tall lifting blocks that came with them. I'm less sure at this point how I'll lift the car with floor jack and jack stands with these pad positionings, but I don't anticipate needing to do that very often.