Aircraft/base is bid in class by seniority established the first day. It is cadet program by entry to the program date, prior 121 pilots by flight time, all others by age.

What is being offered and how many, is, as many have said, a roll of the dice. Look at the “Class drop” thread to see what has been offered in class lately. But no guarantees, and there is no way of knowing ahead of time who will be in the class or what is offered. But with your stats, you will be pretty far down the list. So, I would say pretty unlikely.

There are a lot of better reasons to choose an airline. And if that is yours, there are probably better choices than Envoy.