For what it matters...the plural of "prima donna" is "PRIME DONNE" although in opera's singing it will be hard to find more than 1 in a single act. Otherwise she wouldn't be a prima donna!
As far as the F/O profile Keith is looking for, I would be more than happy to handle him my CV if I had the required rating. A job is posted, T&C's are explained, then we are all grown old men able to make decisions. And with decisions come responsibilities...
PZ