I am in the same situation you are. I don't have any experience or any advice really, but I think you are doing all you can to get answers quickly, which is really good.
I am trying to get set for a scope, but am having delays in getting one done.
I wish you all the best. I hope you will post again, with whatever information you get, as it also helps me and others who are just at the beginning of this process too.
Wishing you the best results possible for your tests.