Congratulations and yes...this will not be the typical amount of silver you find!
As to dumping at a different bank, you might be able to do what I did when I was roll hunting. I went into the bank, asked to see the head teller, told her I was trying to see if I could fill an album, showed it to her and asked if I could return the rolls after going through them. She said it would be no problem. I got to know the tellers, brought a basket of chocolates every so often, brought them album to show my progress, and they seemed to enjoy helping me. Great times!
BTW...and I hope not to get you too addicted...you can look for varieties and have a blast also. A 1974-D doubled die is a good doubled die and if you go at this seriously, you may find one!
Here is a compiled list from many sources of what to look for if you want it:

It needs one revision to it though. I do not believe the 1972-D No FG is a legitimate die error. the FG was polished off. I have yet to see one where the surrounding area where the initials are is not worn from polishing.
How much squash could a Sasquatch squash if a Sasquatch would squash squash?
Download and read: Grading the graders
Costly
TPG ineptitude and No FG
Kennedy halveshttps://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2