Not sure if it will become a permanent thing or not, but Nautilus is another option - Nautilus Liveaboards - Cocos Island Costa Rica
I prepare my camera in my cabin not in common area. Once the camera is set I do not put it on camera tables in any occasion. The camera stays on the ground where it is.@Interceptor121
The Sea Hunter has two twin cabins (as an option) that are not bunks. In addition, I have taken DSLR housed cameras on every trip to Cocos and have never had my camera in my room for any appreciable amount of time (except during the crossings to/from Cocos). There are cubbies, working areas, and storage space on the deck that are utilized for cameras. Occasionally people will also work on them in the salon.
Both the Sea Hunter and the Argos have hosted photography expeditions (including several of Howard and Michelle Hall's IMAX filming efforts). If there is room for those massive cameras, there is room for yours.
I work like this for the last 15 years and am not planning to change so in this case I will prefer the boat with the two twin beds I guess