Top speed - F/A-18E/F
maneuverability - F/A-18E/F
Range - F-16XL (guesswork)
payload - Don't know the payload of the F-18, but the F-16XL was capable of carrying twice the payload of the F-16, 40% further.
payload diversity - Depends on what they are willing to make it capable of carrying.
Avionics - Again depends on what they put in it.

If it would have been beneficial it would have been mass produced.