A snuck in bottle Jack would have to do the trick. I sheared the bolt head off the control arm perch side -- that was a clean looking bolt, with a welded nut on the other side. God knows what the frame side one will do, it looks deep fried in rust!! Maybe an impact wrench (air wrench fit in smaller space?). Am I over complicating this yet??
Please chime in if ya been there done that...