Tammy, congrats on being offered such a beautiful Hermes!
I tried on an identical bag a week ago. It was stunning! My DH said it looked great on me. He gave me his credit card...but, I didn't buy it
To me, the 35 Birkin is too large and bulky. But, that's just me! It has nothing to do with my size or my height and I really don't feel that the bags have much to do with a lady's size at all.
Instead, it is what feels RIGHT to you when you try it on. I have friends who are both five feet tall. They both carry Birkin 35s and love them.
I am just shy of 5'5" and it's too large for me.
I feel you need to try it, or lacking that, arrange with your SA return priviledges should it not be to your liking.
As for the Fjord leather, I took my HAC 32 in Fjord with me to the grocery store yesterday. I didn't even notice it on my arm. Once you have your things inside the bag, the weight of the leather, I feel, will not be that much different from one bag to the next. For my own bags I try not to load them up so that they will not be too terribly heavy.
Do not go by your size in selecting what size bag to adopt....go by what feels right to you.
I do hope it works for you....it is an absolutely breathtaking bag!!