After more than a week, I'm going to force an update. Any rolls not made at this point I will assume have been 'taken 10' on.
For this first room, there is no need of marching order, but I recommend you put some thought into such things.
My basic assumption right now is that Graal is in front, Joseph, Dune, Throreth, Weohstan.
A reminder of where you currently are:
The mouth of the mine opens up less than 10ft in, for a working section of the mine that is 40ft tall, 90ft wide, and 80ft across. The area is scattered with wheelbarrows, big picks, large hand-drills, and other equipment.