Here’s the sequence of producing the short casting. If I don’t have to deal with the toes I can do this by myself pretty easily. Note that I have coated my foot and ankle with olive oil just after installing the tape (see below).
The only photo I didn’t get was of my foot set with forefoot on the ground and heel off and my leg correctly aligned.
Note the blue painters tape showing above the wrap. It runs down almost all the way to the bottom edge of the plaster wrap and protects my skin from the butter knife used to cut the plaster wrap.