Let's try this again - without outside interference, if possible. 
I'd like to make it clear that I'm most agreeable to you making me a replacement Grant with brass caps.
Of course I don't expect it be here 'today'. I'd just like to ask that you make it your top priority. (I know how easily you get distracted with new ideas you want to work on.) And that you ship it priority/express with the proper security precautions to assure it's delivery to the best of your ability.
I'd like to make it clear that I'm most agreeable to you making me a replacement Grant with brass caps.
Of course I don't expect it be here 'today'. I'd just like to ask that you make it your top priority. (I know how easily you get distracted with new ideas you want to work on.) And that you ship it priority/express with the proper security precautions to assure it's delivery to the best of your ability.
6) The "a new GG solution" would be not good for her because she was worring about shipping time and not for a GG itself, so if I had told her about this solution she would be angry saying that the shipping time would be huge either.
7) The subject here is not the solution but the shipping time. Solution is easy but it will take time. Will she accept it? No, because she doesnt want a GG. She wants a GG TODAY
As for you now, your problem is not the GG but the GG now. As I told you, the prosedure with the post office was 1 month. You didnt like it. I said ok, I will refund to you for the missing parts. You didnt like it. Now you say that you agree to send you a new one. I can do it but you will complain about shipping time again.