Have you actually seen an A-10 fully loaded? You can't be stealthy with all that hardware hanging from the wings. And there's no way you can store it all inside the airframe and still have a nimble craft like the A-10.
You start storing all that ordinance inside an aircraft; they call them bombers. Those we got.
O.K. O.K. we need stealthy ordinance then.. and pilons..
Stealth cruise missiles should be standard procedure.. even stealth air to air missles.. That way the targets radar would not hes in danger..