dreamer...
you have a lot of questions. Sounds like you have that flying bug pretty good. But you might be doing a few things out of order. Priorities is the first word that comes to my mind.
It is ok to wonder and dream who you want to fly for, and what you are going to do on those long flights in cruise and what kind of jet you want to be captain on... but you have a long road of flight training before any of that happens.
Most people on here will tell you a similar story, but when I did my private license I wanted to go into the Air Force. Then I changed that to wanted to fly corporate jets during my instrument rating. Then I wanted to fly cargo for FedEx before I got my commercial and then major airlines, and then cargo for UPS then corporate again and back and fourth about 30 more times.
The company you will want to fly for will change just as fast as this industry changes. Get your flight training done first. Become a flight instructor if you can. Learn a little, and then you can start flying people and boxes and boxes with people in them if you can find one of those companies...