I bought this used in excellent condition and only used it 5 times in the one year that I've owned it. It is by far the toughest, most versatile housing for the 7D that exists whether you are using it for photography or video. I've done both and the accessories allow you to expand and do anything with it. It has never been flooded, it is the most bullet proof and amazing dive housing I've found. I just don't use it enough. The port is in excellent condition as is the rest of it.
Hotshoe flash connecting wire
8.5" acryllic dome port
50 extension ring
Tokina 11-16 gear ring
Extra set of O-rings
2 Hex sets
2 x 1"Strobe mounts w/ lanyard attached
Wrist leash attached
1600 Pelican Case
My asking price is $4000. I'm not interested in selling it piece by piece. The whole kit is worth over $4700. There are more photos at the link below.
Here are some videos and photos taken with this housing.