Hi. The only thought I have is to duplicate (say) paths 2 and 3 in your final shape layer, then when you want the two missing paths to appear keyframe paths 4 and 5 onto the duplicates – it would mean the peel away from the existing shapes though.
Hi. AE’s inbuilt Camera Tracker can track this footage (Animation/Track Camera). For the blur you might keyframe the Camera Lens Blur effect and eyeball it to the amount of blur on the original.