Thanks for the kudos, much appreciated.
My next project is going to be a hot rod OROV ROV where I replace the DST-700 brushless motors with Blue Robotics M100 motors and propellers.
Adapting the M100 motors to the OROV motor mount frame requires a special adapter, much like the DST-700 pedestal mount, that I was lucky enough to acquire three of a while back.
Again, like my Hybrid ROV above, this is not a inexpensive conversion as the total cost of the motors is $210 and the propellers are $12 each. However, these motors will last and perform much beyond the DST-700 brushless motors in salt water.