You're very welcome, Maverick-Mongoose.
Thanks a lot for the lovely feedback about the Remi award; since ever I do anything with the people here on the forum in mind when I create. It evidently works to have a great audience :-), and be part of a great team!
I wanted to share one more option:
Here I use a "cage" as a proxy/dummy object, which could be even more simplified. With this, any shoe inside the cage (or close to the surface) will stay as it is, how twisted you might go in the future with a model.
My best wishes