Looking for modern Fitting Shell Pattern, plus sizes

Hi all,

(I hope) I am ready to try making a bodice sloper, using the instructions from the closet historian However, the patterns she recommends are pretty much unavailable, only a couple of small sizes, for which i would have to pay an enormous amount of shipping costs, as i live in Europe.

Do you have or use a modern pattern that would be really suitable as a bodice sloper? I would be looking for something like size 14-20

She also has a video on how to make something from scratch, but she advices against it and i'm not yet a very experienced sewer, so i trust her judgement.

As an aside, am i paranoid in thinking these companies retracted these shell patterns, because they don't want to risk loosing their audience?