Hello!
My big sister decided today I need to make stays for my little sister.

Complicated I know.
Anyway. I don't have the money to buy a pattern. So I'm planning to draft one, but I have no idea where to start. :-/ Any ideas? Is there one in the Work Woman's Guide that would work? I know I've seen a little girls' one made from it... Am I correct in thinking they usually had straps? Not sure how well that works with half high necklines. :-/
My sister will be 11 on Monday. She's quite largely built. Her measurements are 30-26-39. She's probably 5'4" or better. And we're going for 1860's if that makes a difference.
So basically I'd like to know where to start.

Pictures and diagrams would be great to! Wish there was a simple tutorial for one.

Pretty much all I have in mind so far is back lacing and button closure in the front. Other then that I know 0.

We're making her a whole new wardrobe and I'd like to try to get this done first so let me know what ya got!

Thanks so much!