Where can a civilian get high g-force training/testing in a centrifuge? (Likely by paying.) Preferably with and without a g-suit. Preferably based in the US, maybe Canada.
I'm betting the US Air Force centrifuge in San Antonio, Texas, and Canada's military centrifuge in Toronto would laugh and/or hang up the phone if asked.
Crossing my fingers there's a private or educational facility that would be an option.