FINALLY got this. There's an optimal 2-off that I was sure had to be the right path... Took me a few sessions to find a different way that was 2 steps faster.
Woooow, I can hardly believe, I really got it. Was manyyy offff (12 or more), for a looong time. Had a certain idea about a certain part of this level on how to move things and only today did I try different also in that particular part, which I had that idea about. This brought me two close. From there I soon got 170. This was a really tough nut for me. :))