I would not get to worked up right now at this point. From the pictures the only note would be to secure timing chain down low so it will not drop or slip off crank.
The loose chain, pic#1 blue rags picture, shows enough "slop" that when things are moved the chain could drop.
IE SPEAKING from experience.
In Following FSM the alignment of all the components' is covered before getting to far. Crank, cams, distributors, timing, etc.
Enjoy putting back together. Like the Valve cover porn.
Cheers appreciate that, I think I’ll just leave it for now and try and make sure everything lines up when I put it back together..