Step 5 (completed)
Here is the stock viewfinder installed in the housing and the 180 degree viewfinder is on the right.

Another view of the inside of the housing with the stock viewfinder installed.

Here is another picture of the front half of the opened housing.

Step 6
Remove the rope handle. Use a small pair of pliers to loosen the ball clamps.

This step is needed because those posts stick up too high to let the bag zip shut.

Here are all the components ready to pack. Some will go into a roller bag, some will go into a waist bag, and the rest will go into a suitcase with the dive gear.

Step 7
Pack the housing, the dome port and basically as many other parts as will fit around those. In this shot everything that can fit in the roller bag is in place. Everything off of the towel goes into the waist bag at the top, and the items left on the towel end up in a suitcase.

Closer view of parts stuffed in the roller bag. This bag, from Thinktank, is similar to my Thinktank backpack. Both have same external dimensions and will fit under an airplace seat. But the handles and wheels on the roller bag take a lot of usable space. For sure a lot more gear would fit in the backpack - but then I'd have to carry it everywhere.

Final stage
I have put neoprene padding in place (gloves, hood, beanie, dome port cover) and then added bubble wrap on top.

The bag actually zips closed, though it would not if I had not removed the top ball clamp post holding the rope handle. I put some stiff plastic sheets in the front pocket for additional protection for that $1800 dome port.