3) I AM IN!!! I am "Medically Qualified" but not "Qualified", as it was explained to me over the phone. Basically, I am qualified to start work, go to licensing class and ultimately get licensed. But, unlike you lucky SOB's who do not have anything wrong with you, I must submit my temple of a body to the medical director for periodic(on top of the biennial requirement) probings to verify my "parameters are still within spec and normalized". If my parameters go out of spec, then they red circle me and place me out of commission.
If you get a license, but then are medically not qualified, your employer would love to keep you as an instructor. The odds of them not allowing you to license are slim; but some power-hungry medical types like to hold that power. I don't know about that particular site, but at most sites you would see that jerk gone before you have complete training, with a less difficult person in their place.
No offense, but the cream of the crop from med school don't line up at the gates of the nuke plant to get a job performing mini-physicals.