I find the obsession with breaking down housing and camera into component parts for travel really weird. I travel with my DSLR in the housing with the wide angle lens and dome port in situ and strobes attached, ready to dive. Fits in a backpack with a jumper for padding as I casually wander onto the plane pretending it doesn't weigh much. I put fresh eneloops in the strobes at home and setting up consists of:
Step 1. Remove Housing From Backpack
Step 2. Go Diving
I can see why spending the first day of the trip fiddling nervously with o-rings and puffing minuscule bits of dust off the lens/port/lens again would detract from the excitement.