Was a typo in the topic-text. I had it reversed. Changed it. The screenshot is correct.

In a perfect world the block would have made the pistons end up at 0-deck. but I was only able to check the parts until now.
I've decided I won't be taking it all apart again to just deck the block, the project has been taken too much time already and needs to be done fairly soon. The difference in deckheights can be 'fixed' with headgaskets and a slight cut on one head, don't see no issues there.
I measured the 4 pistons on all corners and show no slope in the decks.

My concern is mainly the DCR as a result of such a mild cam.