WTB front XB head

[Theycallmecrash]

As title says, friends bike broke an exhaust stud deep, thread are toasted and drilling out the remain and rethreading resulted in a completely disaster. The other stud broke 1/4" out of the head trying to extract it with a stud removal tool, and then welding a nut to the stud, applied heat, applied cold penetrant... yeah just broke again. So **** this thing, i suspect the top one was cross threaded and the bottom one just siezed.

Anyone got a head lying around?