Well all i can say to those Vols i hope your up to it. Have a search on the internet regarding the Sao Paulo last few days it had to flight divert into Recife with a pax brought back to life by the cabin crew. Hope the medical side of things are something you can handle something which may rest on your mind for a while if it all goes pear shape.
All hail the cabin crew with the powers of resurrection!
Can you turn water into wine as well?
I think the volunteers will be OK.
As has been explained here many times, but you seem still to fail to grasp,
the flight wont be crewed exclusively by volunteers. There will be a mix of experienced crew as well. Got that? It means on a triple, if there are 12 crew, there might be 7 volunteers and 5 experinced crew to deal with any difficult situations.