munky
"paint the grey Mk 6s green and give em the right mods and they are good to go"
Those airframes are probably the hardest used airframes in terms of fatigue in the fleet. Hovered at 21.4 for just about every hour of their lives. They also have no decent personell load when converted to 6C. If they are the answer, then the question is wrong.
"Blackhawk is a very maintenance hungry"
I am not an engineer, but I did fly SeaHawk, and it didn't seem that way to me......