@marath010 Nah, I was thinking along 3d printing, you could use something like, Fusion 350 (it used to be free, not sure now, but worth checking if you want to go that route):
The only problem is you need to 3d scan the HA or make a mold of the HA, so you can create a shoe, then integrate the metal contact charging system into the shoe, then the rest should be easy.
I think it is a good idea, rest the practicality of it that is to be researched.
The argument is, if the system below was useful, then why not what the OP is trying to achieve?
I say, go for it and good luck.