The only Electras flown in the states with 2 pilot crews that I know of are actually P-3s.
Firefighting P-3s regularly fly in the US with just 2 pilots on board.
The FAA began allowing this in 1990 with 2 type rated pilots.
This rule was modified after a short time to allow only the captain to be type rated.
I flew these planes for several years with good results and did not see a need for an F.E.
4000 punds per hour is a good figure and 300 kts is the cruise speed one would expect.