I'll tell you about this.
Don't forget you guys are not alone in this matter. If, and when they ever decide to start talking, the highly experienced and professional negotiators from the IAM will be there too.
And it's my belief that by the time this is done, we'll probably see a "hybrid" of our two conflicting contracts.
So, out of all the great things you listed, and me using the past as a reference, about the only things I think you'll see change from your contract might be:
* a change in your "CS" policy to more match our "swap" policy
* a "no meal" clause to match a "late lunch" clause
* the 4 hour sick pay
* the part time Mechanic
* Lead pay. I forget what yours is, but ours is $1.75/ hour.
Just about everything else you listed, we lost many bankruptcies ago, and I never expect to see them back.