It only takes two weeks maximum for your body to acclimitize to any new weather environment(extreme heat/cold). SNEY is past this point already...
We are extremely flexible as people and can adapt to our envrinments fairly quickly. I have no doubt in my mind that there will be no trouble for SNEY.
Once the boats are on the river there shouldn't be any more logistical problems. They can move up and down river at will to get to their areas. I don't see any problems in getting all the boats on the river as the Ops guys were there for so long before the dredges, they must have set up a launch pad.
If SNEY can put one boat in the water they can put all three in. From an operational standpoint, as long as everyone is trained and comfortable then I say get 'em out there.
Just IMO of course...I think the biggest issue they will have is finding local people to train as divers. From the videos I saw two motors on each dredge...does that mean two divers per boat? Or is the second motor to pump the material from the sump to the upper sluice?
Don't argue with idiots. They just drag you down to their level and beat you with home court advantage.