Thank you for all the kind comments about my coat and dressform. It is lovely to receive compliments and commiserations.
I would like to talk a bit more about the dress form, which was a good learning experience, and yes, we will be making another one.
Genevieve is quite useful already. She is greater in circumference than me, but as Tanit-isis points out, that can just be useful wearing ease. I am making a very simple woven shell-type top at the moment that fits her closely to see how much ease I need to allow when using her.
The terrific thing about this form is that her shoulders are just as square as mine, she has my narrow, upright back, her bust level, waist level and hip level are the same as mine, and I can see where I need to adjust for big backsideness, even though Genevieve is lacking in this region :).
I did not expect a tape dummy to match me exactly. T-shirt + 5 layers of tape would be difficult to squash down to my dimensions.
As Sharon mentions, getting a custom made form to one's exact measurement in Australia is not an option. Having someone else tape you for a form commercially would have the same extra circumference issues.
Genevieve cost me less than $AUS 80, from locally available materials. The cheapest adjustable commercial dress form available to me from a regular shop is $249, + shipping.(I did not look too hard on e-bay). I would still need to pad out such a form, which sounds very, very tricky.
There is an excellent description by Kathryn (fzxdoc)of how to pad out a form on this thread at Stitchers' Guild. I am not tempted - yet.