Charles, great progress - its lookin good. On your part IDs, I agree with all your picks, but I think the sealab part on the neck is only the area with the grid-like pattern (which is a cabinet front section from the kit)- unless you've spotted something more from the kit. Here is a link to a picture of the part I'm talking about.
Also, as promised earlier this week, here are a few more pics of kit parts. I know there are more parts from some of these same kits - but this is from my "quick" scan when I bought them. Would appreciate anyone's ideas on hits and misses.
And finally, below is the list of kits I own, and I'm more than happy to help research parts for anyone who's seriously building right now. PM's would be best for this.
That's all for now...
Dan