For roughing in I'd go with 1100mm ffl to soffit of arch......... 
That would be very rough and in favour of your argument.
i have not set it out on a drawing board but I have used chamfered scale rule and dividers. I have trieed not to err on either side.
From the GROUND to the soffit of the arch (underside of the keystone), I have measured it, as near as I can say, as approx 1 metre (100 cm). I have found the step to be about 4 cm and Madeleines sandal soles about 1 cm thick.
Therefore Madeleine was fitting in a space of 95 cm height. It was probably designed to that nice round figure originally. She was short of the arch so her height was less than that
I have studied the image and noticed that Madeleines eyes are level with certian arch stones and measured that height .
The top of her head is level with other arch stones and I have measured that height too.
When taking those sandals into account, I found that Madeleine measured
835cm to her eyes
and
935 cm overall
I have not drawn this on a drawing board with parallel motion or click head, so not as accurate as I would have wished, but I have endeavoured to be fair to both sides.
This means that Madeleine was too short to see on to the kitchen counters, but she was a little taller, it seems, than Kate thought. However, she was well short of the 100cm(+) measurements that some managed to manufacture on here
Also IIRC the height that Amaral fixed for her of 100cm. << please correct me if I have Amarals height assessment wrong