"Did you just 'You're my only hope, Obi-Wan Kenobi' me? Not cool. Very not cool."
Tony considered the gravitational force matrix against her body mass versus her actual physical structure which he had been able to analyze. Roughly she would be able to cause what equated to a cataclysm. It was a lot to take in all at once, but Tony had taken a nuke through a space rift into another dimension to blow up an invading army before they could conquer Earth. He was pretty good with staying calm under pressure. Stress was his best friend when he was working.
Other than JARVIS.
JARVIS was incapable of being replaced in his mind. Even Bruce wasn't to him what JARVIS was and Bruce was a kindred spirit Tony had never imagined he'd find in his lifetime. He couldn't imagine a world without his AI there to listen to him, talk him down, give him a rational response to any unbelievably bad decision he'd made. Tony had crafted the program which evolved into JARVIS. That didn't mean he'd made JARVIS to him though. In his mind, JARVIS was as much his own person as anyone else. He passed the Touring Test with flying colors. JARVIS wasn't a machine. He was a man inside a machine.
"Emotional stabilizers? I can do that. That's a bit more bio than mech, but I can handle it. I worked with hormonal regulation and emotional stabilization for Pepper. We did a nanite injection on her though so I suppose it depends on how you feel about microscopic machines being injected into you?"