More often than not you're going to have a member of the general public answering these questions especially for larger stores. Best bet would be to call the store direct. You may want to inquire with some glass shops as well.
Call and ask them or take the product to the store and see.
Call them. They can tell you if they can
They can do custom framing, i see no reason why they couldn't frame it out for you
Not sure if they work with mirrors
Thanks! Your answer is awaiting moderation.