Update
Looks like I'll be pulling the top and exchanging the hydo line on either 10/7 or 10/8, that's when my son in law has time to help (could change and be later)
I found two z4 top repair video's which I haven't seen before. However, they both are in Spanish (I don't speak this).
The first is taking the top off, This actually shows the top being lifted off.
The second is a video on installing new hydo lines to the lifter. This is the first video (in Spanish or otherwise) which I've seen on installing Hydo lines to lifters.