For COIN type operations where the enemy force can be expected to have nothing more potent than MANPADs a simple cheap subsonic bomber... even an Il-28 type simple straight wing bomber with a 3 ton payload and perhaps new modern efficient engines could be designed with this avionics upgrade and dumb bombs to operate with UAVs to find and engage targets from safe altitudes with the accuracy of guided weapons but the cost of a low cost aircraft and cheap dumb bombs...
If you give the aircraft exceptionally long range you can operate them all from one airfield, which means you only need to worry about MANPADS around one airfield which would simplify defence.
Obviously fitting the aircraft with DIRCMs would increase its cost but I think its value would outweigh its cost over time as eventually a state sponsored enemy might adapt to engage slow high flying targets... even a MANPAD mounted on a simple UAV could eventually be used against a simple cheap bomber target...